3084K59 | Machinable-Bore Clamping Shaft Coupling

Filter by

System of Measurement

Shaft Diameter

Shaft Type

Construction

Material

Overall Length

Shaft Mount Type

Keyway Width

For Rotary Motion

Length

Keyway Depth

Maximum Torque

Less than 1,000 in·lbf

1,000 in·lbf to 9,999 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf or greater

Not Rated

Clamping Screw Material

Stainless Steel

Steel

Number of Clamping Screws Included

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

Clamping Screw Type

Cap

Socket Head

Torque

Less than 1,000 in·lbf

1,000 in·lbf to 9,999 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf or greater

Rotation Speed

Less than 2,000 rpm

2,000 rpm to 2,999 rpm

3,000 rpm to 3,999 rpm

4,000 rpm to 4,999 rpm

5,000 rpm or greater

Shaft Coupling Connection

Performance

696 Products

Set Screw Rigid Shaft Couplings

Slide these couplings onto the end of your shaft and tighten the set screws to secure. Set screws bite into the shaft to hold the coupling in place. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Black-Oxide Steel

Black-oxide steel couplings have some corrosion resistance.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	No. of Set Screws Included		Each
For Keyed Shafts



	3/8"	1"	3/4"	3,450	175	Forward/Reverse, Start/Stop, Continuous	2	6412K8	000000


	1/2"	1 1/2"	1"	3,450	470	Forward/Reverse, Start/Stop, Continuous	2	6412K41	00000
	5/8"	2"	1 1/4"	3,450	1,185	Forward/Reverse, Start/Stop, Continuous	2	6412K42	00000
	3/4"	2"	1 1/2"	3,450	1,420	Forward/Reverse, Start/Stop, Continuous	2	6412K43	00000
	7/8"	2"	1 3/4"	1,740	1,660	Forward/Reverse, Start/Stop, Continuous	2	6412K44	00000
	1"	3"	2"	1,740	3,785	Forward/Reverse, Start/Stop, Continuous	2	6412K45	00000
	1 1/4"	4"	2 1/4"	1,740	6,310	Forward/Reverse, Start/Stop, Continuous	2	6412K47	00000
	6 mm	20 mm	15 mm	3,450	75	Forward/Reverse, Start/Stop, Continuous	2	5395T112	0000
	8 mm	25 mm	17 mm	3,450	98	Forward/Reverse, Start/Stop, Continuous	2	5395T212	00000
	10 mm	25 mm	19 mm	3,450	230	Forward/Reverse, Start/Stop, Continuous	2	5395T312	00000
	12 mm	38 mm	22 mm	3,450	570	Forward/Reverse, Start/Stop, Continuous	2	5395T412	00000


	15 mm	50 mm	31 mm	3,450	1,185	Forward/Reverse, Start/Stop, Continuous	2	5395T512	00000
	20 mm	50 mm	38 mm	3,450	1,875	Forward/Reverse, Start/Stop, Continuous	2	5395T612	00000


	For Round Shafts



			3/16"	3/4"	1/2"	3,450	52	Forward/Reverse, Start/Stop, Continuous	2	6412K9	00000


			1/4"	3/4"	1/2"	3,450	69	Forward/Reverse, Start/Stop, Continuous	2	6412K11	00000
			5/16"	1"	5/8"	3,450	86	Forward/Reverse, Start/Stop, Continuous	2	6412K12	00000
			3/8"	1"	3/4"	3,450	175	Forward/Reverse, Start/Stop, Continuous	2	6412K13	00000
			1/2"	1 1/2"	1"	3,450	235	Forward/Reverse, Start/Stop, Continuous	2	6412K14	00000
			5/8"	2"	1 1/4"	3,450	465	Forward/Reverse, Start/Stop, Continuous	2	6412K15	00000
			3/4"	2"	1 1/2"	3,450	560	Forward/Reverse, Start/Stop, Continuous	2	6412K16	00000
			7/8"	2"	1 3/4"	1,740	655	Forward/Reverse, Start/Stop, Continuous	2	6412K17	00000
			1"	3"	2"	1,740	750	Forward/Reverse, Start/Stop, Continuous	2	6412K18	00000
			1 1/8"	3"	2 1/8"	1,740	1,180	Forward/Reverse, Start/Stop, Continuous	2	6412K31	00000
			1 1/4"	4"	2 1/4"	1,740	1,310	Forward/Reverse, Start/Stop, Continuous	2	6412K32	00000


			1 3/8"	4 1/2"	2 1/2"	1,740	1,440	Forward/Reverse, Start/Stop, Continuous	2	6412K33	00000
			1 1/2"	4 1/2"	2 1/2"	1,740	1,575	Forward/Reverse, Start/Stop, Continuous	2	6412K34	000000
			6 mm	20 mm	15 mm	3,450	34	Forward/Reverse, Start/Stop, Continuous	2	5395T111	0000
			8 mm	25 mm	17 mm	3,450	46	Forward/Reverse, Start/Stop, Continuous	2	5395T211	0000
			10 mm	25 mm	19 mm	3,450	110	Forward/Reverse, Start/Stop, Continuous	2	5395T311	00000
			12 mm	38 mm	22 mm	3,450	175	Forward/Reverse, Start/Stop, Continuous	2	5395T411	00000
			15 mm	50 mm	31 mm	3,450	220	Forward/Reverse, Start/Stop, Continuous	2	5395T511	00000
			20 mm	50 mm	38 mm	3,450	295	Forward/Reverse, Start/Stop, Continuous	2	5395T611	00000

Black-Oxide 1215 Carbon Steel

Black-oxide steel couplings have some corrosion resistance.

4 Set Screws Included—Couplings with four set screws hold better than couplings with two set screws.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque	For Rotary Motion	No. of Set Screws Included		Each
For Keyed Shafts



	10	45	29	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N11	000000


	12	45	29	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N13	00000
	14	50	34	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N15	00000
	16	50	34	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N17	00000
	20	65	42	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N19	00000
	25	75	45	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N22	00000
	30	83	53	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N24	000000
	35	95	67	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N26	000000
	40	108	77	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N28	000000


	For Round Shafts



			6	30	18	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N57	00000


			8	35	24	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N59	00000
			10	45	29	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N35	00000
			14	50	34	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N39	00000
			16	50	34	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N42	00000
			20	65	42	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N44	00000
			25	75	45	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N46	00000

6061 Aluminum

For Round Shafts

Aluminum couplings are lightweight with good corrosion resistance.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	No. of Set Screws Included		Each
For Round Shafts



	3/16"	3/4"	1/2"	3,450	30	Forward/Reverse, Start/Stop, Continuous	2	2424K9	000000


	1/4"	3/4"	1/2"	2,025	40	Forward/Reverse, Start/Stop, Continuous	2	2424K11	00000
	5/16"	1"	5/8"	2,025	50	Forward/Reverse, Start/Stop, Continuous	2	2424K12	00000
	3/8"	1"	3/4"	2,025	105	Forward/Reverse, Start/Stop, Continuous	2	2424K13	00000
	1/2"	1 1/2"	1"	2,025	140	Forward/Reverse, Start/Stop, Continuous	2	2424K14	00000
	5/8"	2"	1 1/4"	2,025	275	Forward/Reverse, Start/Stop, Continuous	2	2424K15	00000
	3/4"	2"	1 1/2"	2,025	330	Forward/Reverse, Start/Stop, Continuous	2	2424K16	00000
	7/8"	2"	1 3/4"	1,020	385	Forward/Reverse, Start/Stop, Continuous	2	2424K17	00000
	1"	3"	2"	1,020	440	Forward/Reverse, Start/Stop, Continuous	2	2424K18	00000
	1 1/8"	3"	2 1/8"	1,020	695	Forward/Reverse, Start/Stop, Continuous	2	2424K19	00000
	1 1/4"	4"	2 1/4"	1,020	770	Forward/Reverse, Start/Stop, Continuous	2	2424K21	00000


	1 1/2"	4 1/2"	2 1/2"	1,020	925	Forward/Reverse, Start/Stop, Continuous	2	2424K23	000000

303 Stainless Steel

Stainless steel couplings have excellent corrosion resistance.

4 Set Screws Included—Couplings with four set screws hold better than couplings with two set screws.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque	For Rotary Motion	No. of Set Screws Included		Each
For Keyed Shafts



	3/8"	1"	3/4"	3,450	175 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K29	000000


	1/2"	1 1/2"	1"	3,450	470 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K41	00000
	5/8"	2"	1 1/4"	3,450	1,185 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K42	00000
	3/4"	2"	1 1/2"	3,450	1,420 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K43	00000
	7/8"	2"	1 3/4"	1,740	1,660 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K44	000000
	1"	3"	2"	1,740	3,785 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K45	000000
	1 1/4"	4"	2 1/4"	1,740	6,310 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K47	000000
	6 mm	20 mm	15 mm	3,450	75 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T114	00000
	10 mm	25 mm	19 mm	3,450	230 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T314	00000
	12 mm	38 mm	22 mm	3,450	570 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T414	00000
	15 mm	50 mm	31 mm	3,450	1,185 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T514	00000


	16 mm	50 mm	34 mm	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N18	000000
	20 mm	50 mm	38 mm	3,450	1,875 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T614	000000


	For Round Shafts



			3/16"	3/4"	1/2"	3,450	52 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K11	00000


			1/4"	3/4"	1/2"	3,450	43 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K21	00000
			5/16"	1"	5/8"	3,450	54 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K22	00000
			3/8"	1"	3/4"	3,450	110 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K23	00000
			1/2"	1 1/2"	1"	3,450	145 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K24	00000
			5/8"	2"	1 1/4"	3,450	290 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K25	00000
			3/4"	2"	1 1/2"	3,450	350 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K26	00000
			7/8"	2"	1 3/4"	1,740	410 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K27	00000
			1"	3"	2"	1,740	465 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K28	000000
			1 1/8"	3"	2 1/8"	1,740	735 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K46	000000
			1 1/4"	4"	2 1/4"	1,740	815 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K48	000000


			1 3/8"	4 1/2"	2 1/2"	1,740	900 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K49	000000
			1 1/2"	4 1/2"	2 1/2"	1,740	980 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	6099K51	000000
			6 mm	20 mm	15 mm	3,450	21 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T113	00000
			8 mm	25 mm	17 mm	3,450	28 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T213	00000
			10 mm	25 mm	19 mm	3,450	69 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T313	00000
			10 mm	45 mm	29 mm	4,000	Not Rated	Forward/Reverse, Start/Stop, Continuous	4	3613N36	00000
			12 mm	38 mm	22 mm	3,450	110 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T413	00000
			15 mm	50 mm	31 mm	3,450	135 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T513	00000
			20 mm	50 mm	38 mm	3,450	180 in·lbf	Forward/Reverse, Start/Stop, Continuous	2	5395T613	00000

Clamping Rigid Shaft Couplings

Designed to grip evenly around your shaft, clamping couplings provide more holding power than set screw couplings without marring the shaft. Slide onto the end of your shaft and tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

	For Shaft Dia.	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



		3/8" × 3/8"	1 3/8"	7/8"	4,000	450	Forward/Reverse, Start/Stop, Continuous	61005K111	000000


		1/2" × 1/2"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K122	00000
		5/8" × 5/8"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	61005K133	00000
		3/4" × 3/4"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	61005K144	00000
		7/8" × 7/8"	2 1/2"	1 5/8"	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	61005K155	00000
		1" × 1"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K166	00000
		1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	4,400	Forward/Reverse, Start/Stop, Continuous	61005K177	000000
		1 3/16" × 1 3/16"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K95	000000
		1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K188	000000
		1 3/8" × 1 3/8"	3 5/8"	2 1/2"	4,000	9,600	Forward/Reverse, Start/Stop, Continuous	61005K755	000000
		1 7/16" × 1 7/16"	3 7/8"	2 5/8"	4,000	6,800	Forward/Reverse, Start/Stop, Continuous	61005K96	000000


		1 1/2" × 1 1/2"	3 7/8"	2 5/8"	4,000	10,250	Forward/Reverse, Start/Stop, Continuous	61005K611	000000
		1 3/4" × 1 3/4"	4 1/2"	3 1/8"	4,000	18,500	Forward/Reverse, Start/Stop, Continuous	61005K799	000000
		1 15/16" × 1 15/16"	4 7/8"	3 3/8"	4,000	13,600	Forward/Reverse, Start/Stop, Continuous	61005K97	000000
		2" × 2"	4 7/8"	3 3/8"	4,000	20,250	Forward/Reverse, Start/Stop, Continuous	61005K622	000000
		8 mm × 8 mm	35 mm	24 mm	4,000	440	Forward/Reverse, Start/Stop, Continuous	2469K71	00000
		10 mm × 10 mm	45 mm	29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K72	00000
		12 mm × 12 mm	45 mm	29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K73	00000
		14 mm × 14 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K74	00000
		15 mm × 15 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K75	00000
		16 mm × 16 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K76	00000


		20 mm × 20 mm	65 mm	42 mm	4,000	3,095	Forward/Reverse, Start/Stop, Continuous	2469K77	000000
		25 mm × 25 mm	75 mm	45 mm	4,000	3,540	Forward/Reverse, Start/Stop, Continuous	2469K78	000000
		30 mm × 30 mm	83 mm	53 mm	4,000	4,200	Forward/Reverse, Start/Stop, Continuous	2469K79	000000


		For Round Shafts



				1/8" × 1/8"	1 1/16"	11/16"	3,000	25	Forward/Reverse, Start/Stop, Continuous	61005K191	00000


				3/16" × 3/16"	7/8"	9/16"	4,000	200	Forward/Reverse, Start/Stop, Continuous	61005K1	00000
				1/4" × 3/16"	1"	5/8"	4,000	200	Forward/Reverse, Start/Stop, Continuous	61005K2	00000
				1/4" × 1/4"	1"	5/8"	4,000	200	Forward/Reverse, Start/Stop, Continuous	61005K311	00000
				5/16" × 5/16"	1 3/8"	7/8"	4,000	200	Forward/Reverse, Start/Stop, Continuous	61005K3	00000
				3/8" × 1/4"	1 3/8"	7/8"	4,000	475	Forward/Reverse, Start/Stop, Continuous	61005K511	00000
				3/8" × 3/8"	1 3/8"	7/8"	4,000	450	Forward/Reverse, Start/Stop, Continuous	61005K322	00000
				1/2" × 3/8"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K522	00000
				1/2" × 1/2"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K331	00000
				5/8" × 1/2"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	61005K533	00000
				5/8" × 5/8"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	61005K344	00000


				3/4" × 5/8"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	61005K544	00000
				3/4" × 3/4"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	61005K355	00000
				7/8" × 7/8"	2 1/2"	1 5/8"	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	61005K366	00000
				1" × 1/2"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K551	00000
				1" × 3/4"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K561	00000
				1" × 1"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K377	00000
				1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	4,400	Forward/Reverse, Start/Stop, Continuous	61005K388	00000
				1 3/16" × 1"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K85	000000
				1 3/16" × 1 3/16"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K84	000000
				1 1/4" × 1"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K577	000000


1 1/4" × 1 1/4"	3 1/4"			2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	61005K399	00000
1 3/8" × 1 3/8"	3 5/8"			2 1/2"	4,000	9,600	Forward/Reverse, Start/Stop, Continuous	61005K766	000000
1 7/16" × 1"	3 7/8"			2 5/8"	4,000	6,800	Forward/Reverse, Start/Stop, Continuous	61005K87	000000
1 7/16" × 1 7/16"	3 7/8"			2 5/8"	4,000	6,800	Forward/Reverse, Start/Stop, Continuous	61005K86	000000
1 1/2" × 1 1/2"	3 7/8"			2 5/8"	4,000	10,250	Forward/Reverse, Start/Stop, Continuous	61005K588	000000
1 3/4" × 1 3/4"	4 1/2"			3 1/8"	4,000	18,500	Forward/Reverse, Start/Stop, Continuous	61005K811	000000
1 15/16" × 1 15/16"	4 7/8"			3 3/8"	4,000	13,600	Forward/Reverse, Start/Stop, Continuous	61005K88	000000
2" × 2"	4 7/8"			3 3/8"	4,000	20,250	Forward/Reverse, Start/Stop, Continuous	61005K599	000000
6 mm × 6 mm	30 mm			18 mm	4,000	300	Forward/Reverse, Start/Stop, Continuous	2469K1	00000
8 mm × 6 mm	35 mm			24 mm	4,000	440	Forward/Reverse, Start/Stop, Continuous	2469K21	00000


8 mm × 8 mm	35 mm			24 mm	4,000	440	Forward/Reverse, Start/Stop, Continuous	2469K2	00000
10 mm × 6 mm	45 mm			29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K22	00000
10 mm × 10 mm	45 mm			29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K3	00000
12 mm × 10 mm	45 mm			29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K23	00000
12 mm × 12 mm	45 mm			29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	2469K4	00000
14 mm × 14 mm	50 mm			34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K5	00000
15 mm × 15 mm	50 mm			34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K6	00000
16 mm × 16 mm	50 mm			34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	2469K7	00000
20 mm × 12 mm	65 mm			42 mm	4,000	3,095	Forward/Reverse, Start/Stop, Continuous	2469K52	00000
20 mm × 20 mm	65 mm			42 mm	4,000	3,095	Forward/Reverse, Start/Stop, Continuous	2469K8	00000


25 mm × 20 mm	75 mm			45 mm	4,000	3,540	Forward/Reverse, Start/Stop, Continuous	2469K53	00000
25 mm × 25 mm	75 mm			45 mm	4,000	3,540	Forward/Reverse, Start/Stop, Continuous	2469K9	00000
30 mm × 20 mm	83 mm			53 mm	4,000	4,200	Forward/Reverse, Start/Stop, Continuous	2469K54	000000
30 mm × 25 mm	83 mm			53 mm	4,000	4,200	Forward/Reverse, Start/Stop, Continuous	2469K55	000000
30 mm × 30 mm	83 mm			53 mm	4,000	4,200	Forward/Reverse, Start/Stop, Continuous	2469K11	000000

303 Stainless Steel

Stainless steel couplings have excellent corrosion resistance.

	For Shaft Dia.	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



		3/8" × 3/8"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	61005K211	000000


		1/2" × 1/2"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	61005K221	000000
		5/8" × 5/8"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	61005K233	000000
		3/4" × 3/4"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K244	000000
		7/8" × 7/8"	2 1/2"	1 5/8"	4,000	1,100	Forward/Reverse, Start/Stop, Continuous	61005K255	000000
		1" × 1"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	61005K266	000000
		1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	61005K277	000000
		1 3/16" × 1 3/16"	3 1/4"	2 1/16"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	61005K7	000000
		1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	61005K288	000000
		1 3/8" × 1 3/8"	3 5/8"	2 1/2"	4,000	2,900	Forward/Reverse, Start/Stop, Continuous	61005K771	000000
		1 7/16" × 1 7/16"	3 7/8"	2 5/8"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K8	000000


		1 1/2" × 1 1/2"	3 7/8"	2 5/8"	4,000	3,100	Forward/Reverse, Start/Stop, Continuous	61005K733	000000
		1 3/4" × 1 3/4"	4 1/2"	3 1/8"	4,000	5,500	Forward/Reverse, Start/Stop, Continuous	61005K822	000000
		2" × 2"	4 7/8"	3 3/8"	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	61005K744	000000
		8 mm × 8 mm	35 mm	24 mm	4,000	140	Forward/Reverse, Start/Stop, Continuous	2469K61	000000
		10 mm × 10 mm	45 mm	29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K62	000000
		12 mm × 12 mm	45 mm	29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K63	000000
		14 mm × 14 mm	50 mm	34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K64	000000
		15 mm × 15 mm	50 mm	34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K65	000000
		16 mm × 16 mm	50 mm	34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K66	000000
		20 mm × 20 mm	65 mm	42 mm	4,000	970	Forward/Reverse, Start/Stop, Continuous	2469K67	000000


		25 mm × 25 mm	75 mm	45 mm	4,000	1,060	Forward/Reverse, Start/Stop, Continuous	2469K68	000000
		30 mm × 30 mm	83 mm	53 mm	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	2469K69	000000


		For Round Shafts



				1/8" × 1/8"	1 1/16"	11/16"	3,000	19	Forward/Reverse, Start/Stop, Continuous	61005K192	00000


				3/16" × 3/16"	7/8"	9/16"	4,000	105	Forward/Reverse, Start/Stop, Continuous	61005K4	00000
				1/4" × 3/16"	1"	5/8"	4,000	60	Forward/Reverse, Start/Stop, Continuous	61005K5	00000
				1/4" × 1/4"	1"	5/8"	4,000	60	Forward/Reverse, Start/Stop, Continuous	61005K411	00000
				5/16" × 5/16"	1 3/8"	7/8"	4,000	60	Forward/Reverse, Start/Stop, Continuous	61005K6	00000
				3/8" × 1/4"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	61005K633	00000
				3/8" × 3/8"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	61005K422	00000
				1/2" × 3/8"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	61005K644	000000
				1/2" × 1/2"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	61005K433	00000
				5/8" × 1/2"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	61005K655	000000
				5/8" × 5/8"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	61005K441	000000


				3/4" × 5/8"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K661	000000
				3/4" × 3/4"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	61005K451	000000
				7/8" × 7/8"	2 1/2"	1 5/8"	4,000	1,100	Forward/Reverse, Start/Stop, Continuous	61005K466	000000
				1" × 1/2"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	61005K677	000000
				1" × 3/4"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	61005K688	000000
				1" × 1"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	61005K477	000000
				1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	61005K488	000000
				1 1/4" × 1"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	61005K699	000000
				1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	61005K499	000000
				1 3/8" × 1 3/8"	3 5/8"	2 1/2"	4,000	2,900	Forward/Reverse, Start/Stop, Continuous	61005K788	000000


1 7/16" × 1"	3 7/8"			2 5/8"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K93	000000
1 7/16" × 1 7/16"	3 7/8"			2 5/8"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	61005K92	000000
1 1/2" × 1 1/2"	3 7/8"			2 5/8"	4,000	3,100	Forward/Reverse, Start/Stop, Continuous	61005K711	000000
1 3/4" × 1 3/4"	4 1/2"			3 1/8"	4,000	5,500	Forward/Reverse, Start/Stop, Continuous	61005K833	000000
1 15/16" × 1 15/16"	4 7/8"			3 3/8"	4,000	8,200	Forward/Reverse, Start/Stop, Continuous	61005K94	000000
2" × 2"	4 7/8"			3 3/8"	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	61005K722	000000
6 mm × 6 mm	30 mm			18 mm	4,000	89	Forward/Reverse, Start/Stop, Continuous	2469K12	00000
8 mm × 6 mm	35 mm			24 mm	4,000	140	Forward/Reverse, Start/Stop, Continuous	2469K13	000000
8 mm × 8 mm	35 mm			24 mm	4,000	140	Forward/Reverse, Start/Stop, Continuous	2469K14	00000
10 mm × 6 mm	45 mm			29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K15	000000


10 mm × 10 mm	45 mm			29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K16	00000
12 mm × 10 mm	45 mm			29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K17	000000
12 mm × 12 mm	45 mm			29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	2469K18	00000
14 mm × 14 mm	50 mm			34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K19	000000
15 mm × 15 mm	50 mm			34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K27	000000
16 mm × 16 mm	50 mm			34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	2469K28	000000
20 mm × 12 mm	65 mm			42 mm	4,000	970	Forward/Reverse, Start/Stop, Continuous	2469K29	000000
20 mm × 20 mm	65 mm			42 mm	4,000	970	Forward/Reverse, Start/Stop, Continuous	2469K31	000000
25 mm × 20 mm	75 mm			45 mm	4,000	1,060	Forward/Reverse, Start/Stop, Continuous	2469K32	000000
25 mm × 25 mm	75 mm			45 mm	4,000	1,060	Forward/Reverse, Start/Stop, Continuous	2469K33	000000


30 mm × 30 mm	83 mm			53 mm	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	2469K35	000000

Two-Piece Rigid Shaft Couplings

Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts. These couplings clamp onto the shafts, creating a secure hold that won’t mar them. Good for high-torque applications, they have a rigid construction. However, their rigidity means these couplings can only connect shafts that are well aligned.

Black-Oxide Steel


For Keyed Shafts	For Round Shafts

Steel couplings are stronger and handle higher torque loads than aluminum and stainless steel couplings.

For Keyed Shafts—Couplings for keyed shafts have keyways that are cut to standard ANSI dimensions, so they fit snugly on ANSI keyed shafts to eliminate slipping during starts and stops.

	For Shaft Dia.	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shaft × For Round Shaft



		3/8" × 1/4"	1 3/8"	7/8"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K52	0000000


		For Keyed Shafts



				3/8" × 3/8"	1 3/8"	7/8"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K11	00000


				1/2" × 3/8"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K53	000000
				1/2" × 1/2"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K12	00000
				5/8" × 1/2"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	60845K55	000000
				5/8" × 5/8"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	60845K13	000000
				3/4" × 5/8"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	60845K57	000000
				3/4" × 3/4"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	60845K14	000000
				7/8" × 7/8"	2 1/2"	1 5/8"	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	60845K15	000000
				1" × 1/2"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K59	000000
				1" × 3/4"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K62	000000
				1" × 1"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K16	000000


				1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	4,400	Forward/Reverse, Start/Stop, Continuous	60845K17	000000
				1 1/4" × 1"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	60845K64	000000
				1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	60845K18	000000
				1 3/8" × 1 3/8"	3 5/8"	2 1/2"	4,000	9,600	Forward/Reverse, Start/Stop, Continuous	60845K911	000000
				1 1/2" × 1 1/2"	3 7/8"	2 5/8"	4,000	10,250	Forward/Reverse, Start/Stop, Continuous	60845K66	000000
				1 3/4" × 1 3/4"	4 1/2"	3 1/8"	4,000	18,500	Forward/Reverse, Start/Stop, Continuous	60845K951	000000
				2" × 2"	4 7/8"	3 3/8"	4,000	20,250	Forward/Reverse, Start/Stop, Continuous	60845K68	000000
				12 mm × 12 mm	45 mm	29 mm	4,000	925	Forward/Reverse, Start/Stop, Continuous	6508T23	000000
				14 mm × 12 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	6508T146	000000
				15 mm × 15 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	6508T25	000000


				16 mm × 16 mm	50 mm	34 mm	4,000	1,770	Forward/Reverse, Start/Stop, Continuous	6508T26	000000
				20 mm × 20 mm	65 mm	42 mm	4,000	3,095	Forward/Reverse, Start/Stop, Continuous	6508T27	000000
				25 mm × 25 mm	75 mm	45 mm	4,000	3,540	Forward/Reverse, Start/Stop, Continuous	6508T28	000000
				30 mm × 30 mm	83 mm	53 mm	4,000	4,200	Forward/Reverse, Start/Stop, Continuous	6508T29	000000
				35 mm × 35 mm	95 mm	67 mm	4,000	9,735	Forward/Reverse, Start/Stop, Continuous	6508T165	000000
				40 mm × 40 mm	108 mm	77 mm	4,000	11,725	Forward/Reverse, Start/Stop, Continuous	6508T167	000000
				50 mm × 50 mm	124 mm	85 mm	4,000	19,910	Forward/Reverse, Start/Stop, Continuous	6508T169	000000


				For Round Shafts



						1/4" × 1/4"	1"	5/8"	4,000	200	Forward/Reverse, Start/Stop, Continuous	60845K31	00000


						3/8" × 1/4"	1 3/8"	7/8"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K51	00000
						3/8" × 3/8"	1 3/8"	7/8"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K32	00000
						1/2" × 3/8"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K54	00000
						1/2" × 1/2"	1 3/4"	1 1/8"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K33	00000
						5/8" × 1/2"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	60845K56	000000
						5/8" × 5/8"	2"	1 5/16"	4,000	1,600	Forward/Reverse, Start/Stop, Continuous	60845K34	00000
						3/4" × 5/8"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	60845K58	000000
						3/4" × 3/4"	2 1/4"	1 1/2"	4,000	3,200	Forward/Reverse, Start/Stop, Continuous	60845K35	00000
						7/8" × 7/8"	2 1/2"	1 5/8"	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	60845K36	000000
						1" × 1/2"	3"	1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K61	000000


1" × 3/4"	3"					1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K63	000000
1" × 1"	3"					1 3/4"	4,000	4,000	Forward/Reverse, Start/Stop, Continuous	60845K37	000000
1 1/8" × 1 1/8"	3 1/8"					1 7/8"	4,000	4,400	Forward/Reverse, Start/Stop, Continuous	60845K38	000000
1 1/4" × 1"	3 1/4"					2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	60845K65	000000
1 1/4" × 1 1/4"	3 1/4"					2 1/16"	4,000	5,000	Forward/Reverse, Start/Stop, Continuous	60845K39	000000
1 3/8" × 1 3/8"	3 5/8"					2 1/2"	4,000	9,600	Forward/Reverse, Start/Stop, Continuous	60845K921	000000
1 1/2" × 1 1/2"	3 7/8"	2 5/8"				4,000	10,250	Forward/Reverse, Start/Stop, Continuous	60845K67	000000
1 3/4" × 1 3/4"	4 1/2"	3 1/8"	4,000			18,500	Forward/Reverse, Start/Stop, Continuous	60845K961	000000
2" × 2"	4 7/8"	3 3/8"	4,000			20,250	Forward/Reverse, Start/Stop, Continuous	60845K69	000000
3 mm × 3 mm	22 mm	15 mm	4,000			13	Forward/Reverse, Start/Stop, Continuous	6508T124	00000


4 mm × 4 mm	22 mm	15 mm	4,000			25	Forward/Reverse, Start/Stop, Continuous	6508T129	00000
5 mm × 5 mm	22 mm	15 mm	4,000			16	Forward/Reverse, Start/Stop, Continuous	6508T133	00000
6 mm × 6 mm	30 mm	18 mm	4,000			300	Forward/Reverse, Start/Stop, Continuous	6508T51	00000
8 mm × 8 mm	35 mm	24 mm	4,000			440	Forward/Reverse, Start/Stop, Continuous	6508T52	00000
10 mm × 10 mm	45 mm	29 mm	4,000			925	Forward/Reverse, Start/Stop, Continuous	6508T53	00000
12 mm × 12 mm	45 mm	29 mm	4,000			925	Forward/Reverse, Start/Stop, Continuous	6508T54	00000
14 mm × 14 mm	50 mm	34 mm	4,000			1,770	Forward/Reverse, Start/Stop, Continuous	6508T113	000000
15 mm × 14 mm	50 mm	34 mm	4,000			1,770	Forward/Reverse, Start/Stop, Continuous	6508T115	000000
15 mm × 15 mm	50 mm	34 mm	4,000			1,770	Forward/Reverse, Start/Stop, Continuous	6508T56	000000
16 mm × 14 mm	50 mm	34 mm	4,000			1,770	Forward/Reverse, Start/Stop, Continuous	6508T118	000000


16 mm × 16 mm	50 mm	34 mm	4,000			1,770	Forward/Reverse, Start/Stop, Continuous	6508T57	000000
20 mm × 20 mm	65 mm	42 mm	4,000			3,095	Forward/Reverse, Start/Stop, Continuous	6508T58	000000
25 mm × 25 mm	75 mm	45 mm	4,000			3,540	Forward/Reverse, Start/Stop, Continuous	6508T59	000000
30 mm × 30 mm	83 mm	53 mm	4,000			4,200	Forward/Reverse, Start/Stop, Continuous	6508T61	000000
35 mm × 35 mm	95 mm	67 mm	4,000			9,735	Forward/Reverse, Start/Stop, Continuous	6508T127	000000
50 mm × 50 mm	124 mm	85 mm	4,000			19,910	Forward/Reverse, Start/Stop, Continuous	6508T135	000000

Black-Oxide 12L14 Carbon Steel

Black-oxide carbon steel couplings have some corrosion resistance but should be used in dry environments.

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Square Shafts



	1/4" × 1/4"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K137	000000


	5/16" × 5/16"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K138	00000
	3/8" × 3/8"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K139	00000
	7/16" × 7/16"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K141	00000
	1/2" × 1/2"	2 5/8"	1 3/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K142	00000
	5/8" × 5/8"	3"	2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K144	00000
	3/4" × 3/4"	3 1/4"	2 1/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K146	00000
	7/8" × 7/8"	3 3/8"	2 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K147	00000
	1" × 1"	3 3/4"	2 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K148	00000


	For Hex Shafts



			1/4" × 1/4"	1 1/4"	13/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K101	00000


			5/16" × 5/16"	1 1/4"	13/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K102	00000
			3/8" × 3/8"	1 5/8"	1 1/16"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K103	00000
			7/16" × 7/16"	1 7/8"	1 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K104	00000
			1/2" × 1/2"	1 7/8"	1 1/4"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K105	00000
			5/8" × 5/8"	2 1/4"	1 1/2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K107	00000
			11/16" × 11/16"	2 7/8"	1 7/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K108	00000
			3/4" × 3/4"	2 7/8"	1 7/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K109	00000
			7/8" × 7/8"	3"	2"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K181	000000
			1" × 1"	3 1/4"	2 1/8"	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	60845K182	000000

6061 Aluminum

For Round

Shafts

Aluminum couplings are lightweight, making them useful in precision motion control and servomotor applications.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque	For Rotary Motion		Each
For Round Shafts



	1/4" × 1/4"	2 1/2"	1 7/8"	3,450	100 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K18	000000


	1/4" × 3/8"	2 1/2"	1 7/8"	3,450	100 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K21	00000
	3/8" × 3/8"	2 1/2"	1 7/8"	3,450	100 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K22	00000
	1/2" × 1/2"	2 1/2"	1 7/8"	3,450	150 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K11	00000
	1/2" × 5/8"	2 1/2"	1 7/8"	3,450	150 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K31	00000
	1/2" × 3/4"	2 1/2"	1 7/8"	3,450	150 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K32	00000
	5/8" × 5/8"	2 1/2"	1 7/8"	3,450	150 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K12	00000
	5/8" × 3/4"	2 1/2"	1 7/8"	3,450	150 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K33	00000
	3/4" × 3/4"	2 1/2"	1 7/8"	3,450	250 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K13	00000
	3/4" × 7/8"	2 1/2"	1 7/8"	3,450	250 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K34	00000
	3/4" × 1"	2 1/2"	1 7/8"	3,450	250 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K35	00000


	7/8" × 7/8"	2 1/2"	1 7/8"	3,450	250 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K14	00000
	7/8" × 1"	2 1/2"	1 7/8"	3,450	250 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K36	00000
	1" × 1"	2 1/2"	1 7/8"	3,450	500 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K15	00000
	1 1/8" × 1 1/8"	2 1/2"	1 7/8"	3,450	500 in·lbf	Forward/Reverse, Start/Stop, Continuous	6115K23	00000
	10 mm × 10 mm	2 1/2"	1 7/8"	3,450	100 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K37	00000
	11 mm × 11 mm	2 1/2"	1 7/8"	3,450	100 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K39	00000
	11 mm × 12 mm	2 1/2"	1 7/8"	3,450	150 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K41	00000
	12 mm × 15 mm	2 1/2"	1 7/8"	3,450	150 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K43	00000
	20 mm × 20 mm	2 1/2"	1 7/8"	3,450	500 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K49	00000
	25 mm × 25 mm	2 1/2"	1 7/8"	3,450	500 ft·lbf	Forward/Reverse, Start/Stop, Continuous	6115K52	00000

303 Stainless Steel


For Keyed Shafts	For Round Shafts

303 stainless steel couplings resist corrosion, so they’re often used in wet conditions, such as with mixers and pumps.

For Keyed Shafts—Couplings for keyed shafts have keyways that are cut to standard ANSI dimensions, so they fit snugly on ANSI keyed shafts to eliminate slipping during starts and stops.

	For Shaft Dia.	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shaft × For Round Shaft



		3/8" × 1/4"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	60845K71	0000000


		For Keyed Shafts



				3/8" × 3/8"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	60845K21	000000


				1/2" × 3/8"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	60845K72	000000
				1/2" × 1/2"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	60845K22	000000
				5/8" × 1/2"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K73	000000
				5/8" × 5/8"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K23	000000
				3/4" × 5/8"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K74	000000
				3/4" × 3/4"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K24	000000
				7/8" × 7/8"	2 1/2"	1 5/8"	4,000	1,100	Forward/Reverse, Start/Stop, Continuous	60845K25	000000
				1" × 1/2"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	60845K75	000000
				1" × 3/4"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	60845K76	000000
				1" × 1"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	60845K26	000000


				1 1/8" × 1 1/8"	3 1/8"	1 7/8"	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	60845K27	000000
				1 1/4" × 1"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	60845K77	000000
				1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	60845K28	000000
				1 1/2" × 1 1/2"	3 7/8"	2 5/8"	4,000	3,100	Forward/Reverse, Start/Stop, Continuous	60845K78	000000
				2" × 2"	4 7/8"	3 3/8"	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	60845K79	00000000
				15 mm × 15 mm	50 mm	34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	6508T75	000000
				16 mm × 16 mm	50 mm	34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	6508T76	000000
				20 mm × 20 mm	65 mm	42 mm	4,000	970	Forward/Reverse, Start/Stop, Continuous	6508T77	000000
				25 mm × 25 mm	75 mm	45 mm	4,000	1,060	Forward/Reverse, Start/Stop, Continuous	6508T78	000000
				30 mm × 30 mm	83 mm	53 mm	4,000	1,325	Forward/Reverse, Start/Stop, Continuous	6508T79	000000


				For Round Shafts



						1/4" × 1/4"	1"	5/8"	4,000	60	Forward/Reverse, Start/Stop, Continuous	60845K41	00000


						3/8" × 1/4"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	60845K81	000000
						3/8" × 3/8"	1 3/8"	7/8"	4,000	145	Forward/Reverse, Start/Stop, Continuous	60845K42	000000
						1/2" × 3/8"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	60845K82	000000
						1/2" × 1/2"	1 3/4"	1 1/8"	4,000	275	Forward/Reverse, Start/Stop, Continuous	60845K43	000000
						5/8" × 1/2"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K83	000000
						5/8" × 5/8"	2"	1 5/16"	4,000	475	Forward/Reverse, Start/Stop, Continuous	60845K44	000000
						3/4" × 5/8"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K84	000000
						3/4" × 3/4"	2 1/4"	1 1/2"	4,000	950	Forward/Reverse, Start/Stop, Continuous	60845K45	000000
						7/8" × 7/8"	2 1/2"	1 5/8"	4,000	1,100	Forward/Reverse, Start/Stop, Continuous	60845K46	000000
						1" × 1"	3"	1 3/4"	4,000	1,200	Forward/Reverse, Start/Stop, Continuous	60845K47	000000


						1 1/4" × 1 1/4"	3 1/4"	2 1/16"	4,000	1,500	Forward/Reverse, Start/Stop, Continuous	60845K49	000000
						1 3/8" × 1 3/8"	3 5/8"	2 1/2"	4,000	2,900	Forward/Reverse, Start/Stop, Continuous	60845K941	000000
						2" × 2"	4 7/8"	3 3/8"	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	60845K89	00000000
						3 mm × 3 mm	22 mm	15 mm	4,000	9	Forward/Reverse, Start/Stop, Continuous	6508T125	000000
						5 mm × 5 mm	22 mm	15 mm	4,000	13	Forward/Reverse, Start/Stop, Continuous	6508T134	000000
						6 mm × 6 mm	30 mm	18 mm	4,000	89	Forward/Reverse, Start/Stop, Continuous	6508T31	000000
						8 mm × 8 mm	35 mm	24 mm	4,000	140	Forward/Reverse, Start/Stop, Continuous	6508T32	000000
						10 mm × 10 mm	45 mm	29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	6508T33	000000
12 mm × 12 mm						45 mm	29 mm	4,000	280	Forward/Reverse, Start/Stop, Continuous	6508T34	000000
14 mm × 14 mm	50 mm					34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	6508T114	000000


15 mm × 15 mm	50 mm					34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	6508T36	000000
16 mm × 16 mm	50 mm					34 mm	4,000	530	Forward/Reverse, Start/Stop, Continuous	6508T37	000000
20 mm × 20 mm	65 mm					42 mm	4,000	970	Forward/Reverse, Start/Stop, Continuous	6508T38	000000
25 mm × 25 mm	75 mm	45 mm				4,000	1,060	Forward/Reverse, Start/Stop, Continuous	6508T39	000000
40 mm × 40 mm	108 mm	77 mm	4,000			3,540	Forward/Reverse, Start/Stop, Continuous	6508T132	00000000

Machinable-Bore Clamping Rigid Shaft Couplings

When one of your shafts is undersized from wear, oversized from coatings, or uncommonly sized, machine one end of these couplings to fit. They clamp around your shafts for a secure hold that won’t cause damage. But, you’ll need access to the end of each shaft to slide them into place. Since they’re rigid, they prevent movement between the shafts, making them good for high-torque applications. This also means your shafts must align to connect.

Steel


	For Keyed Shafts	For Round Shafts

Steel couplings resist corrosion in dry environments.

For Keyed Shafts—Couplings for keyed shafts grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



	1/2" × 0.235" to 0.500"	1 7/8"	1 1/4"	Not Rated	380	Forward/Reverse, Start/Stop, Continuous	3084K65	000000


	5/8" × 0.235" to 0.625"	2 1/4"	1 1/2"	Not Rated	785	Forward/Reverse, Start/Stop, Continuous	3084K66	00000
	3/4" × 0.235" to 0.750"	2 5/8"	1 3/4"	Not Rated	1,505	Forward/Reverse, Start/Stop, Continuous	3084K67	00000
	7/8" × 0.235" to 0.875"	2 7/8"	1 7/8"	Not Rated	1,760	Forward/Reverse, Start/Stop, Continuous	3084K68	00000
	1" × 0.360" to 1.000"	3"	2"	Not Rated	2,010	Forward/Reverse, Start/Stop, Continuous	3084K69	00000
	1 1/8" × 0.360" to 1.125"	3 1/4"	2 1/8"	Not Rated	2,260	Forward/Reverse, Start/Stop, Continuous	3084K71	00000
	1 1/4" × 0.360" to 1.250"	3 3/8"	2 1/4"	Not Rated	2,510	Forward/Reverse, Start/Stop, Continuous	3084K72	00000
	1 3/8" × 0.360" to 1.375"	3 5/8"	2 3/8"	Not Rated	2,770	Forward/Reverse, Start/Stop, Continuous	3084K73	000000
	1 1/2" × 0.485" to 1.500"	3 3/4"	2 1/2"	Not Rated	3,020	Forward/Reverse, Start/Stop, Continuous	3084K74	000000
	1 3/4" × 0.485" to 1.750"	4 1/2"	3"	Not Rated	5,625	Forward/Reverse, Start/Stop, Continuous	3084K75	000000
	2" × 0.485" to 2.000"	4 7/8"	3 1/4"	Not Rated	6,430	Forward/Reverse, Start/Stop, Continuous	3084K76	000000


	8 mm × 6.000 mm to 8.000 mm	35 mm	22 mm	Not Rated	225	Forward/Reverse, Start/Stop, Continuous	3084K114	00000
	10 mm × 6.000 mm to 10.000 mm	35 mm	22 mm	Not Rated	285	Forward/Reverse, Start/Stop, Continuous	3084K115	00000
	12 mm × 6.000 mm to 12.000 mm	45 mm	29 mm	Not Rated	545	Forward/Reverse, Start/Stop, Continuous	3084K116	00000
	16 mm × 6.000 mm to 16.000 mm	51 mm	33 mm	Not Rated	1,095	Forward/Reverse, Start/Stop, Continuous	3084K117	00000
	20 mm × 6.000 mm to 20.000 mm	64 mm	40 mm	Not Rated	2,025	Forward/Reverse, Start/Stop, Continuous	3084K118	00000
	25 mm × 9.500 mm to 25.000 mm	76 mm	45 mm	Not Rated	2,535	Forward/Reverse, Start/Stop, Continuous	3084K119	00000
	30 mm × 9.500 mm to 30.000 mm	83 mm	52 mm	Not Rated	5,420	Forward/Reverse, Start/Stop, Continuous	3084K121	000000
	35 mm × 9.500 mm to 35.000 mm	89 mm	57 mm	Not Rated	3,550	Forward/Reverse, Start/Stop, Continuous	3084K122	000000
	40 mm × 12.500 mm to 40.000 mm	95 mm	60 mm	Not Rated	4,055	Forward/Reverse, Start/Stop, Continuous	3084K123	000000


	For Round Shafts



			1/2" × 0.235" to 0.500"	1 7/8"	1 1/4"	Not Rated	285	Forward/Reverse, Start/Stop, Continuous	3084K31	00000


			5/8" × 0.235" to 0.625"	2 1/4"	1 1/2"	Not Rated	490	Forward/Reverse, Start/Stop, Continuous	3084K32	00000
			3/4" × 0.235" to 0.750"	2 5/8"	1 3/4"	Not Rated	1,130	Forward/Reverse, Start/Stop, Continuous	3084K33	00000
			7/8" × 0.235" to 0.875"	2 7/8"	1 7/8"	Not Rated	1,320	Forward/Reverse, Start/Stop, Continuous	3084K47	00000
			1" × 0.360" to 1.000"	3"	2"	Not Rated	1,510	Forward/Reverse, Start/Stop, Continuous	3084K34	00000
			1 1/8" × 0.360" to 1.125"	3 1/4"	2 1/8"	Not Rated	1,695	Forward/Reverse, Start/Stop, Continuous	3084K48	00000
			1 1/4" × 0.360" to 1.250"	3 3/8"	2 1/4"	Not Rated	1,885	Forward/Reverse, Start/Stop, Continuous	3084K35	00000
			1 3/8" × 0.360" to 1.375"	3 5/8"	2 3/8"	Not Rated	2,080	Forward/Reverse, Start/Stop, Continuous	3084K49	00000
			1 1/2" × 0.485" to 1.500"	3 3/4"	2 1/2"	Not Rated	2,265	Forward/Reverse, Start/Stop, Continuous	3084K36	00000
			1 3/4" × 0.485" to 1.750"	4 1/2"	3"	Not Rated	4,220	Forward/Reverse, Start/Stop, Continuous	3084K51	000000
			2" × 0.485" to 2.000"	4 7/8"	3 1/4"	Not Rated	4,825	Forward/Reverse, Start/Stop, Continuous	3084K52	000000


			8 mm × 6.000 mm to 8.000 mm	35 mm	22 mm	Not Rated	170	Forward/Reverse, Start/Stop, Continuous	3084K89	00000
			10 mm × 6.000 mm to 10.000 mm	35 mm	22 mm	Not Rated	210	Forward/Reverse, Start/Stop, Continuous	3084K91	00000
			12 mm × 6.000 mm to 12.000 mm	45 mm	29 mm	Not Rated	405	Forward/Reverse, Start/Stop, Continuous	3084K92	00000
			16 mm × 6.000 mm to 16.000 mm	51 mm	33 mm	Not Rated	820	Forward/Reverse, Start/Stop, Continuous	3084K93	00000
			20 mm × 6.000 mm to 20.000 mm	64 mm	41 mm	Not Rated	1,520	Forward/Reverse, Start/Stop, Continuous	3084K94	00000
			25 mm × 9.500 mm to 25.000 mm	76 mm	45 mm	Not Rated	1,900	Forward/Reverse, Start/Stop, Continuous	3084K95	00000
			30 mm × 9.500 mm to 30.000 mm	83 mm	54 mm	Not Rated	4,065	Forward/Reverse, Start/Stop, Continuous	3084K96	000000
			35 mm × 9.500 mm to 35.000 mm	89 mm	57 mm	Not Rated	2,660	Forward/Reverse, Start/Stop, Continuous	3084K97	000000
			40 mm × 12.500 mm to 40.000 mm	95 mm	60 mm	Not Rated	3,040	Forward/Reverse, Start/Stop, Continuous	3084K98	000000

303 Stainless Steel


	For Keyed Shafts	For Round Shafts

303 stainless steel couplings resist rusting from water. But, they won’t stand up to salt water or chloride.

For Keyed Shafts—Couplings for keyed shafts grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



	1/2" × 0.235" to 0.500"	1 7/8"	1 1/4"	Not Rated	260	Forward/Reverse, Start/Stop, Continuous	3084K77	000000


	5/8" × 0.235" to 0.625"	2 1/4"	1 1/2"	Not Rated	540	Forward/Reverse, Start/Stop, Continuous	3084K78	000000
	3/4" × 0.235" to 0.750"	2 5/8"	1 3/4"	Not Rated	1,035	Forward/Reverse, Start/Stop, Continuous	3084K79	000000
	1" × 0.360" to 1.000"	3"	2"	Not Rated	1,380	Forward/Reverse, Start/Stop, Continuous	3084K82	000000
	1 1/8" × 0.360" to 1.125"	3 1/4"	2 1/8"	Not Rated	1,550	Forward/Reverse, Start/Stop, Continuous	3084K83	000000
	1 1/4" × 0.360" to 1.250"	3 3/8"	2 1/4"	Not Rated	1,725	Forward/Reverse, Start/Stop, Continuous	3084K84	000000
	1 1/2" × 0.485" to 1.500"	3 3/4"	2 1/2"	Not Rated	2,075	Forward/Reverse, Start/Stop, Continuous	3084K86	000000
	10 mm × 6.000 mm to 10.000 mm	35 mm	22 mm	Not Rated	65	Forward/Reverse, Start/Stop, Continuous	3084K127	00000
	12 mm × 6.000 mm to 12.000 mm	45 mm	29 mm	Not Rated	240	Forward/Reverse, Start/Stop, Continuous	3084K128	00000
	16 mm × 6.000 mm to 16.000 mm	51 mm	33 mm	Not Rated	485	Forward/Reverse, Start/Stop, Continuous	3084K129	000000
	20 mm × 6.000 mm to 20.000 mm	64 mm	41 mm	Not Rated	900	Forward/Reverse, Start/Stop, Continuous	3084K131	000000


	For Round Shafts



			1/2" × 0.235" to 0.500"	1 7/8"	1 1/4"	Not Rated	195	Forward/Reverse, Start/Stop, Continuous	3084K53	00000


			5/8" × 0.235" to 0.625"	2 1/4"	1 1/2"	Not Rated	405	Forward/Reverse, Start/Stop, Continuous	3084K54	00000
			3/4" × 0.235" to 0.750"	2 5/8"	1 3/4"	Not Rated	775	Forward/Reverse, Start/Stop, Continuous	3084K55	000000
			7/8" × 0.235" to 0.875"	2 7/8"	1 7/8"	Not Rated	905	Forward/Reverse, Start/Stop, Continuous	3084K56	000000
			1" × 0.360" to 1.000"	3"	2"	Not Rated	1,035	Forward/Reverse, Start/Stop, Continuous	3084K57	000000
			1 1/4" × 0.360" to 1.250"	3 3/8"	2 1/4"	Not Rated	1,295	Forward/Reverse, Start/Stop, Continuous	3084K59	000000
			Machinable-Bore Clamping Shaft Coupling, 303 Stainless Steel, for 1-1/4" x 1.250"-0.360" Round Shaft Diameter Product Detail QuantityEachIn stock Select a compatible file type: Parasolid
			1 1/2" × 0.485" to 1.500"	3 3/4"	2 1/2"	Not Rated	1,555	Forward/Reverse, Start/Stop, Continuous	3084K62	000000
			1 3/4" × 0.485" to 1.750"	4 1/2"	3"	Not Rated	2,900	Forward/Reverse, Start/Stop, Continuous	3084K63	000000
			8 mm × 6.000 mm to 8.000 mm	29 mm	22 mm	Not Rated	35	Forward/Reverse, Start/Stop, Continuous	3084K102	00000
			10 mm × 6.000 mm to 10.000 mm	35 mm	22 mm	Not Rated	45	Forward/Reverse, Start/Stop, Continuous	3084K103	00000
			12 mm × 6.000 mm to 12.000 mm	45 mm	28 mm	Not Rated	180	Forward/Reverse, Start/Stop, Continuous	3084K104	00000


			16 mm × 6.000 mm to 16.000 mm	51 mm	33 mm	Not Rated	365	Forward/Reverse, Start/Stop, Continuous	3084K105	000000
			20 mm × 6.000 mm to 20.000 mm	64 mm	41 mm	Not Rated	675	Forward/Reverse, Start/Stop, Continuous	3084K106	000000

Keyless Locking Rigid Shaft Couplings for Overhung Loads

Support the weight of a motor and transfer torque to another shaft at the same time with these couplings. Often used to hang motors from conveyor belts and other driven equipment, or to connect long sections of shafts, these couplings eliminate the need for support brackets. Use a torque arm to prevent hanging motors from spinning.

The clamping screws on the coupling face squeeze two outer collars against an inner ring, pressing it tight against shafts to lock them together. This ring-locking mechanism leaves no room for backlash, meaning that all of the turning force created by the motor is passed on to the second shaft. These couplings grip shafts of any shape, so you can install them onto existing keyways and splines without using a key.

To install these couplings, use a torque wrench to tighten each screw to the fastener tightening torque listed for each coupling size. To remove, gradually loosen each screw in sequence until you can slide the coupling on the shaft. Warning: Do not remove any clamping screws from the coupling until the outer collars are separated from the inner ring. The ring is under tension, and a sudden release of the collars can cause serious injury.

Overhung load capacity is the amount of downward force that a coupling can withstand from a motor or other object that it is supporting. To calculate the overhung load, measure the distance from the center of the coupling to the center of gravity of the motor. Multiply that distance by the combined weight of the motor and the portion of the shaft between the coupling and the motor. Do not exceed the overhung load capacity for a coupling.

Steel

Image of Product. Front orientation. Rigid Shaft Couplings. Keyless Locking Rigid Shaft Couplings for Overhung Loads .

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Fastener Tightening Torque, in·lbf	Overhung Load Cap., in·lbf	For Rotary Motion		Each
For Keyed, Round, and Splined Shafts



	1 1/4"	1 7/8"	3"	10,000	8,435	104	2,105	Forward/Reverse, Start/Stop, Continuous	3456N11	0000000


	1 3/8"	1 7/8"	3"	10,000	9,285	104	2,320	Forward/Reverse, Start/Stop, Continuous	3456N12	000000
	1 1/2"	2 3/16"	3 3/4"	8,000	17,160	264	4,290	Forward/Reverse, Start/Stop, Continuous	3456N13	000000
	1 3/4"	2 3/16"	3 3/4"	8,000	20,025	264	5,005	Forward/Reverse, Start/Stop, Continuous	3456N14	000000
	2"	2 11/16"	4 7/16"	7,700	32,685	264	8,170	Forward/Reverse, Start/Stop, Continuous	3456N15	000000
	2 1/4"	3 1/16"	4 3/4"	7,500	44,135	264	11,030	Forward/Reverse, Start/Stop, Continuous	3456N16	000000
	2 1/2"	3 1/16"	4 3/4"	7,500	49,040	264	12,260	Forward/Reverse, Start/Stop, Continuous	3456N17	000000

Made-to-Order Two-Piece Rigid Shaft Couplings

For hard-to-access shafts that are oversized from coatings or undersized from wear, we’ll get you a coupling in the right size that clamps on as two pieces, so you don’t need to move your shafts or installed components. Let us know your shaft diameter to the nearest 0.001” or 0.1 mm. These couplings are rigid, making them good for high-torque applications. However, your shafts must be aligned.

Through-Bore Rigid Shaft Couplings—For Keyed Shafts


	Through Bore

To Order: For keyed through-bore shaft couplings, please specify your shaft diameter in 0.001” or 0.1 mm increments within the range listed. Also specify the keyway size that matches your shafts.

Through-bore couplings connect same-size shafts.

Couplings for keyed shafts have keyways that are sized to fit ANSI standard machine keys. Insert a key between the coupling and shaft to lock the coupling in place and transmit high levels of torque without slipping.

Choose a Shaft Diameter	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	Choose a Keyway Size (Wd. × Dp.)		Each
0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	960	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32"	6587N1	0000000
0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	3,895	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	6587N4	000000
0.500" to 1.000"	3"	2"	Steel	6,500	4,095	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6587N8	000000
0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	5,840	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6587N14	000000
0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	7,015	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6587N19	000000
0.750" to 1.750"	4 1/2"	3"	Steel	4,000	12,440	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6587N27	000000
0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	14,220	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	6587N35	000000
9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	960	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm	6587N44	000000
9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	3,895	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	6587N49	000000
12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	4,095	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6587N56	000000
12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	5,840	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6587N64	000000
19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	7,015	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	6587N72	000000
19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	12,440	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	6587N81	000000
19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	14,220	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	6587N91	000000

Through-Bore Rigid Shaft Couplings—For Round Shafts


	Through Bore

To Order: For through-bore shaft couplings, please specify your shaft diameter in 0.001” or 0.1 mm increments within the range listed.

Through-bore couplings connect same-size shafts.

Choose a Shaft Diameter	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	720	Forward/Reverse, Start/Stop, Continuous	3499N11	0000000
0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	2,920	Forward/Reverse, Start/Stop, Continuous	3499N12	000000
0.500" to 1.000"	3"	2"	Steel	6,500	3,070	Forward/Reverse, Start/Stop, Continuous	3499N13	000000
0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	4,380	Forward/Reverse, Start/Stop, Continuous	3499N14	000000
0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	5,260	Forward/Reverse, Start/Stop, Continuous	3499N15	000000
0.750" to 1.750"	4 1/2"	3"	Steel	4,000	9,330	Forward/Reverse, Start/Stop, Continuous	3499N16	000000
0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	10,670	Forward/Reverse, Start/Stop, Continuous	3499N17	000000
9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	720	Forward/Reverse, Start/Stop, Continuous	3499N41	000000
9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	2,920	Forward/Reverse, Start/Stop, Continuous	3499N42	000000
12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	3,070	Forward/Reverse, Start/Stop, Continuous	3499N43	000000
12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	4,380	Forward/Reverse, Start/Stop, Continuous	3499N44	000000
19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	5,260	Forward/Reverse, Start/Stop, Continuous	3499N45	000000
19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	9,330	Forward/Reverse, Start/Stop, Continuous	3499N46	000000
19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	10,670	Forward/Reverse, Start/Stop, Continuous	3499N47	000000

Step-Down Rigid Shaft Couplings—For Keyed Shafts


	Step Down

To Order: For keyed step-down shaft couplings, please specify your shaft diameter for each end of the coupling in 0.001” or 0.1 mm increments within the ranges listed. Also specify the keyway sizes that match your shafts.

Step-down couplings connect different-size shafts.

Choose a Shaft Dia. (A)	Choose a Shaft Dia. (B)	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	Choose a Keyway Size (Wd. × Dp.) for Shaft Dia. (A)	Choose a Keyway Size (Wd. × Dp.) for Shaft Dia. (B)		Each
0.375" to 0.500"	0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	425	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32"	3/32" × 3/32", 1/8" × 3/32"	7217N28	0000000
0.375" to 0.500"	9.6 mm to 12.7 mm	1 7/8"	1 1/4"	Steel	7,500	425	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32"	4 mm × 2 mm, 5 mm × 2.3 mm	7217N369	000000
0.375" to 0.750"	0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	1,730	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	7217N238	000000
0.375" to 0.750"	9.6 mm to 19.0 mm	2 5/8"	1 3/4"	Steel	7,500	1,730	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	7217N291	000000
0.500" to 1.000"	0.500" to 1.000"	3"	2"	Steel	6,500	1,820	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	7217N375	000000
0.500" to 1.000"	12.7 mm to 25.4 mm	3"	2"	Steel	6,500	1,820	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	7217N108	000000
0.500" to 1.250"	0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	2,600	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	7217N537	000000
0.500" to 1.250"	12.7 mm to 31.7 mm	3 3/8"	2 1/4"	Steel	5,500	2,600	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	7217N597	000000
0.750" to 1.500"	0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	3,120	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	7217N67	000000
0.750" to 1.500"	19.1 mm to 38.1 mm	3 3/4"	2 1/2"	Steel	4,000	3,120	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	7217N33	000000
0.750" to 1.750"	0.750" to 1.750"	4 1/2"	3"	Steel	4,000	5,530	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	7217N249	000000
0.750" to 1.750"	19.1 mm to 44.4 mm	4 1/2"	3"	Steel	4,000	5,530	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	7217N556	000000
0.750" to 2.000"	0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	6,320	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	7217N183	000000
0.750" to 2.000"	19.1 mm to 50.8 mm	4 7/8"	3 1/4"	Steel	4,000	6,320	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	7217N127	000000
9.6 mm to 12.7 mm	9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	425	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm	7217N616	000000
9.6 mm to 19.0 mm	9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	1,730	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	7217N448	000000
12.7 mm to 25.4 mm	12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	1,820	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	7217N1	000000
12.7 mm to 31.7 mm	12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	2,600	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	7217N302	000000
19.1 mm to 38.1 mm	19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	3,120	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	7217N329	000000
19.1 mm to 44.4 mm	19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	5,530	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	7217N394	000000
19.1 mm to 50.8 mm	19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	6,320	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	7217N466	000000

Step-Down Rigid Shaft Couplings—For Round Shafts


	Step Down

To Order: For step-down shaft couplings, please specify your shaft diameter for each end of the coupling in 0.001” or 0.1 mm increments within the ranges listed.

Step-down couplings connect different-size shafts.

Choose a Shaft Dia. (A)	Choose a Shaft Dia. (B)	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
0.375" to 0.500"	0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	320	Forward/Reverse, Start/Stop, Continuous	3499N18	0000000
0.375" to 0.500"	9.6 mm to 12.7 mm	1 7/8"	1 1/4"	Steel	7,500	320	Forward/Reverse, Start/Stop, Continuous	3499N81	000000
0.375" to 0.750"	0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	1,300	Forward/Reverse, Start/Stop, Continuous	3499N19	000000
0.375" to 0.750"	9.6 mm to 19.0 mm	2 5/8"	1 3/4"	Steel	7,500	1,300	Forward/Reverse, Start/Stop, Continuous	3499N82	000000
0.500" to 1.000"	0.500" to 1.000"	3"	2"	Steel	6,500	1,370	Forward/Reverse, Start/Stop, Continuous	3499N2	000000
0.500" to 1.000"	12.7 mm to 25.4 mm	3"	2"	Steel	6,500	1,370	Forward/Reverse, Start/Stop, Continuous	3499N83	000000
0.500" to 1.250"	0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	1,950	Forward/Reverse, Start/Stop, Continuous	3499N21	000000
0.500" to 1.250"	12.7 mm to 31.7 mm	3 3/8"	2 1/4"	Steel	5,500	1,950	Forward/Reverse, Start/Stop, Continuous	3499N84	000000
0.750" to 1.500"	0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	2,340	Forward/Reverse, Start/Stop, Continuous	3499N22	000000
0.750" to 1.500"	19.1 mm to 38.1 mm	3 3/4"	2 1/2"	Steel	4,000	2,340	Forward/Reverse, Start/Stop, Continuous	3499N85	000000
0.750" to 1.750"	0.750" to 1.750"	4 1/2"	3"	Steel	4,000	4,150	Forward/Reverse, Start/Stop, Continuous	3499N23	000000
0.750" to 1.750"	19.1 mm to 44.4 mm	4 1/2"	3"	Steel	4,000	4,150	Forward/Reverse, Start/Stop, Continuous	3499N86	000000
0.750" to 2.000"	0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	4,740	Forward/Reverse, Start/Stop, Continuous	3499N24	000000
0.750" to 2.000"	19.1 mm to 50.8 mm	4 7/8"	3 1/4"	Steel	4,000	4,740	Forward/Reverse, Start/Stop, Continuous	3499N87	000000
9.6 mm to 12.7 mm	9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	320	Forward/Reverse, Start/Stop, Continuous	3499N51	000000
9.6 mm to 19.0 mm	9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	1,300	Forward/Reverse, Start/Stop, Continuous	3499N52	000000
12.7 mm to 25.4 mm	12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	1,370	Forward/Reverse, Start/Stop, Continuous	3499N53	000000
12.7 mm to 31.7 mm	12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	1,950	Forward/Reverse, Start/Stop, Continuous	3499N54	000000
19.1 mm to 38.1 mm	19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	2,340	Forward/Reverse, Start/Stop, Continuous	3499N55	000000
19.1 mm to 44.4 mm	19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	4,150	Forward/Reverse, Start/Stop, Continuous	3499N56	000000
19.1 mm to 50.8 mm	19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	4,740	Forward/Reverse, Start/Stop, Continuous	3499N57	000000

Strong-Grip Clamping Rigid Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Couplings clamp evenly around the shaft to create a mar-free hold. Slide onto the end of your shaft and tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Keyed Shafts



	1/2"	1 7/8"	1 1/4"	8,000 rpm	465 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T1	000000


	5/8"	2 1/4"	1 1/2"	7,500 rpm	1,040 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T2	00000
	3/4"	2 5/8"	1 3/4"	7,000 rpm	1,475 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T3	00000
	1"	3"	2"	5,000 rpm	3,000 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T4	00000
	1 1/2"	3 3/4"	2 1/2"	5,000 rpm	8,445 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T6	000000
	12 mm	45 mm	28 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T33	00000
	14 mm	50 mm	30 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T34	00000
	15 mm	50 mm	34 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T35	000000
	16 mm	50 mm	34 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T36	000000
	18 mm	60 mm	36 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T37	000000
	20 mm	65 mm	40 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T38	000000


	25 mm	65 mm	45 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T39	000000
	40 mm	90 mm	60 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T43	000000


	For Round Shafts



			3/4"	3 1/2"	2"	7,000 rpm	2,710 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T1	00000


			7/8"	3 3/4"	2 1/8"	6,000 rpm	3,165 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T2	000000
			1"	4"	2 1/4"	5,000 rpm	3,610 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T3	000000
			1 1/4"	4 1/2"	2 1/2"	5,000 rpm	4,510 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T4	000000
			1 1/2"	5"	2 3/4"	5,000 rpm	5,420 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T5	000000
			2"	6"	3 1/2"	3,500 rpm	10,955 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T6	000000
			2 1/4"	6 1/2"	3 3/4"	3,500 rpm	12,320 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T7	000000
			2 1/2"	8"	4 1/4"	3,500 rpm	13,690 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T8	000000

Three-Piece Rigid Shaft Couplings

Access one shaft without disconnecting the other. These rigid couplings have a solid bottom that connects the shafts and two top pieces that clamp the shafts independently.

Black-Oxide Steel

Black-oxide steel couplings are stronger than stainless steel couplings but should be used in primarily dry environments since they may rust.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



	1/2" × 1/2"	1 7/8"	1 1/4"	7,500	833	Forward/Reverse, Start/Stop, Continuous	3367N29	000000


	5/8" × 5/8"	2 1/4"	1 1/2"	7,500	1,800	Forward/Reverse, Start/Stop, Continuous	3367N31	000000
	3/4" × 3/4"	2 5/8"	1 3/4"	7,500	3,390	Forward/Reverse, Start/Stop, Continuous	3367N33	000000
	1" × 1"	3"	2"	6,500	3,560	Forward/Reverse, Start/Stop, Continuous	3367N35	000000
	1 1/4" × 1 1/4"	3 3/8"	2 1/4"	5,500	5,080	Forward/Reverse, Start/Stop, Continuous	3367N37	000000
	1 3/8" × 1 3/8"	3 5/8"	2 3/8"	5,000	5,590	Forward/Reverse, Start/Stop, Continuous	3367N39	000000
	1 1/2" × 1 1/2"	3 3/4"	2 1/2"	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	3367N41	000000
	2" × 2"	4 7/8"	3 1/4"	4,000	12,360	Forward/Reverse, Start/Stop, Continuous	3367N45	000000
	8 mm × 8 mm	35 mm	22 mm	3,600	430	Forward/Reverse, Start/Stop, Continuous	6026N25	00000
	10 mm × 10 mm	35 mm	22 mm	3,600	480	Forward/Reverse, Start/Stop, Continuous	6026N26	000000
	12 mm × 12 mm	45 mm	29 mm	3,600	550	Forward/Reverse, Start/Stop, Continuous	6026N27	000000


	20 mm × 20 mm	64 mm	41 mm	3,600	2,800	Forward/Reverse, Start/Stop, Continuous	6026N32	000000
	25 mm × 25 mm	76 mm	45 mm	3,600	3,400	Forward/Reverse, Start/Stop, Continuous	6026N33	000000
	30 mm × 30 mm	83 mm	52 mm	3,600	4,150	Forward/Reverse, Start/Stop, Continuous	6026N34	000000
	45 mm × 45 mm	114 mm	70 mm	3,600	10,900	Forward/Reverse, Start/Stop, Continuous	6026N37	000000


	For Round Shafts



			1/2" × 1/2"	1 7/8"	1 1/4"	7,500	625	Forward/Reverse, Start/Stop, Continuous	3367N11	00000


			5/8" × 5/8"	2 1/4"	1 1/2"	7,500	1,350	Forward/Reverse, Start/Stop, Continuous	3367N13	00000
			3/4" × 3/4"	2 5/8"	1 3/4"	7,500	2,540	Forward/Reverse, Start/Stop, Continuous	3367N15	00000
			1" × 1"	3"	2"	6,500	2,670	Forward/Reverse, Start/Stop, Continuous	3367N17	00000
			1 1/4" × 1 1/4"	3 3/8"	2 1/4"	5,500	3,810	Forward/Reverse, Start/Stop, Continuous	3367N19	000000
			1 3/8" × 1 3/8"	3 5/8"	2 3/8"	5,000	4,200	Forward/Reverse, Start/Stop, Continuous	3367N21	000000
			1 1/2" × 1 1/2"	3 3/4"	2 1/2"	4,000	4,580	Forward/Reverse, Start/Stop, Continuous	3367N23	000000
			8 mm × 8 mm	35 mm	22 mm	3,600	340	Forward/Reverse, Start/Stop, Continuous	6026N11	00000
			10 mm × 10 mm	35 mm	22 mm	3,600	380	Forward/Reverse, Start/Stop, Continuous	6026N12	00000
			12 mm × 12 mm	45 mm	29 mm	3,600	440	Forward/Reverse, Start/Stop, Continuous	6026N13	00000
			20 mm × 20 mm	64 mm	41 mm	3,600	2,240	Forward/Reverse, Start/Stop, Continuous	6026N17	000000


			25 mm × 25 mm	76 mm	45 mm	3,600	2,720	Forward/Reverse, Start/Stop, Continuous	6026N18	000000
			40 mm × 40 mm	95 mm	60 mm	3,600	4,320	Forward/Reverse, Start/Stop, Continuous	6026N22	000000

303 Stainless Steel


For Keyed Shafts	For Round Shafts

Stainless steel couplings withstand continuous exposure to water and chemicals, such as in pumping applications.

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



	1/2" × 1/2"	1 7/8"	1 1/4"	7,500	370	Forward/Reverse, Start/Stop, Continuous	3367N28	0000000


	5/8" × 5/8"	2 1/4"	1 1/2"	7,500	800	Forward/Reverse, Start/Stop, Continuous	3367N3	000000
	3/4" × 3/4"	2 5/8"	1 3/4"	7,500	1,500	Forward/Reverse, Start/Stop, Continuous	3367N32	000000
	1" × 1"	3"	2"	6,500	1,580	Forward/Reverse, Start/Stop, Continuous	3367N34	000000
	1 1/4" × 1 1/4"	3 3/8"	2 1/4"	5,500	2,250	Forward/Reverse, Start/Stop, Continuous	3367N36	000000


	For Round Shafts



			5/8" × 5/8"	2 1/4"	1 1/2"	7,500	600	Forward/Reverse, Start/Stop, Continuous	3367N12	000000


			3/4" × 3/4"	2 5/8"	1 3/4"	7,500	1,130	Forward/Reverse, Start/Stop, Continuous	3367N14	000000
			1" × 1"	3"	2"	6,500	1,190	Forward/Reverse, Start/Stop, Continuous	3367N16	000000
			1 1/4" × 1 1/4"	3 3/8"	2 1/4"	5,500	1,700	Forward/Reverse, Start/Stop, Continuous	3367N18	000000

Two-Piece Rigid Shaft Coupling Bridges

When your shafts are not close enough to use standard couplings, these have the length to bridge the gap. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Cast Iron

Image of Product. Front orientation. Rigid Shaft Couplings. Two-Piece Rigid Shaft Coupling Bridges .

	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
For Keyed Shafts



	1 3/16"	6 1/4"	4 1/4"	5,360	2,000	Forward/Reverse, Start/Stop, Continuous	6417K11	0000000


	1 1/4"	6 1/4"	4 1/4"	5,360	2,000	Forward/Reverse, Start/Stop, Continuous	6417K71	000000
	1 3/8"	7 1/8"	4 1/2"	4,130	3,500	Forward/Reverse, Start/Stop, Continuous	6417K22	000000
	1 7/16"	7 1/8"	4 1/2"	4,130	3,500	Forward/Reverse, Start/Stop, Continuous	6417K12	000000
	1 1/2"	7 1/8"	4 1/2"	4,130	3,500	Forward/Reverse, Start/Stop, Continuous	6417K72	000000
	1 11/16"	8 1/4"	5 1/8"	3,965	5,500	Forward/Reverse, Start/Stop, Continuous	6417K13	000000
	1 3/4"	8 1/4"	5 1/8"	3,965	5,500	Forward/Reverse, Start/Stop, Continuous	6417K23	000000
	1 15/16"	8 5/8"	5 1/2"	3,635	8,500	Forward/Reverse, Start/Stop, Continuous	6417K14	000000
	2"	8 5/8"	5 1/2"	3,635	8,500	Forward/Reverse, Start/Stop, Continuous	6417K73	000000
	2 3/16"	9 5/16"	5 3/4"	3,180	12,000	Forward/Reverse, Start/Stop, Continuous	6417K15	000000
	2 1/4"	9 5/16"	5 3/4"	3,180	12,000	Forward/Reverse, Start/Stop, Continuous	6417K25	000000


	2 7/16"	9 7/8"	6 1/4"	2,965	17,000	Forward/Reverse, Start/Stop, Continuous	6417K16	000000
	2 1/2"	9 7/8"	6 1/4"	2,965	17,000	Forward/Reverse, Start/Stop, Continuous	6417K19	00000000
	2 11/16"	10 7/8"	7 1/4"	2,830	21,000	Forward/Reverse, Start/Stop, Continuous	6417K17	00000000
	2 3/4"	10 7/8"	7 1/4"	2,830	21,000	Forward/Reverse, Start/Stop, Continuous	6417K27	00000000
	2 15/16"	12"	7 1/4"	2,545	29,000	Forward/Reverse, Start/Stop, Continuous	6417K18	00000000
	3"	12"	7 1/4"	2,545	29,000	Forward/Reverse, Start/Stop, Continuous	6417K28	00000000

Machinable-Bore Two-Piece Rigid Shaft Couplings

Machine the pilot hole in these couplings to whatever size you need. Often used for shafts that are undersized from wear or oversized from coatings. These couplings are two-piece, so you can remove and reinstall them without moving your shafts. The fact that they connect by clamping screws, instead of set screws, means they have greater holding power on shafts without marring them. Couplings are rigid, making them better for high-torque applications than flexible couplings. Because they are rigid, shafts must be precisely aligned during installation.

Black-Oxide Steel

Image of Product. Front orientation. Rigid Shaft Couplings. Machinable-Bore Two-Piece Rigid Shaft Couplings.

Black-oxide steel couplings have some corrosion resistance but should be used in dry environments.

	Overall Lg.	OD	Max. Rotation Speed, rpm	For Rotary Motion		Each
For Round Shafts



	1/4" to 3/4"	2 5/8"	1 3/4"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N11	0000000


	1/2" to 1"	3"	2"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N13	000000
	3/4" to 1 1/2"	3 3/4"	2 1/2"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N15	000000
	1" to 2"	4 7/8"	3 1/4"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N17	000000

18-8 Stainless Steel

18-8 stainless steel couplings are more corrosion resistant than black-oxide steel couplings. They are commonly used with mixers and other wet environments.

	Overall Lg.	OD	Max. Rotation Speed, rpm	For Rotary Motion		Each
For Round Shafts



	1/4" to 3/4"	2 5/8"	1 3/4"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N12	0000000


	1/2" to 1"	3"	2"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N14	000000
	3/4" to 1 1/2"	3 3/4"	2 1/2"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N16	000000
	1" to 2"	4 7/8"	3 1/4"	4,000	Forward/Reverse, Start/Stop, Continuous	3429N18	000000

Strong-Grip Two-Piece Rigid Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

	Overall Lg.	OD	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Keyed Shafts



	1/2"	1 7/8"	1 1/4"	8,000 rpm	526 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T11	0000000


	5/8"	2 1/4"	1 1/2"	7,500 rpm	1,100 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T12	000000
	3/4"	2 5/8"	1 3/4"	7,000 rpm	1,500 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T13	000000
	1"	3"	2"	5,000 rpm	3,500 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T14	000000
	1 1/2"	3 3/4"	2 1/2"	5,000 rpm	8,500 in·lbf	Forward/Reverse, Start/Stop, Continuous	9800T16	000000
	18 mm	60 mm	36 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T25	000000
	20 mm	65 mm	40 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T26	000000
	25 mm	65 mm	45 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T27	000000
	30 mm	75 mm	54 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T28	000000
	35 mm	80 mm	57 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T29	000000
	40 mm	90 mm	60 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T31	000000


	45 mm	105 mm	73 mm	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T32	000000


	For Round Shafts



			3/4"	3 1/2"	2"	7,000 rpm	3,250 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T11	000000


			7/8"	3 3/4"	2 1/8"	6,000 rpm	3,790 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T12	000000
			1"	4"	2 1/4"	5,000 rpm	4,330 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T13	000000
			1 1/4"	4 1/2"	2 1/2"	5,000 rpm	5,420 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T14	000000
			1 1/2"	5"	2 3/4"	5,000 rpm	6,500 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T15	000000
			2"	6"	3 1/2"	3,500 rpm	13,150 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T16	000000
			2 1/4"	6 1/2"	3 3/4"	3,500 rpm	14,795 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T17	000000
			2 1/2"	8"	4 1/4"	3,500 rpm	16,440 in·lbf	Forward/Reverse, Start/Stop, Continuous	9799T18	000000

Made-to-Order Clamping Rigid Shaft Couplings

When you need a strong hold and even grip on shafts that are oversized due to finishes, undersized from wear, or uncommonly sized, we’ll make a coupling for you that fits just right. Tell us your shaft diameters to the nearest 0.001” or 0.1 mm.

These couplings clamp around your shafts to prevent marring them. But, you need access to the end of each shaft to slide them into place. Because they’re rigid, they don’t allow movement between shafts, making them good for high-torque jobs. This also means your shafts must align to connect.

Through-Bore Rigid Shaft Couplings—For Keyed Shafts


	Through Bore

To Order: For keyed through-bore shaft couplings, please specify your shaft diameter in 0.001” or 0.1 mm increments within the range listed. Also specify the keyway size that matches your shafts.

Through-bore couplings connect same-size shafts.

Choose a Shaft Diameter	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	Choose a Keyway Size (Wd. × Dp.)		Each
0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	830	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32"	6707N1	0000000
0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	3,380	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	6707N97	000000
0.500" to 1.000"	3"	2"	Steel	6,500	3,560	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6707N25	000000
0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	5,080	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6707N37	000000
0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6707N52	000000
0.750" to 1.750"	4 1/2"	3"	Steel	4,000	10,820	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6707N4	000000
0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	12,360	Forward/Reverse, Start/Stop, Continuous	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	6707N43	000000
9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	830	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm	6707N19	000000
9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	3,380	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	6707N31	000000
12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	3,560	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6707N12	000000
12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	5,080	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6707N59	000000
19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	6,100	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	6707N67	000000
19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	10,820	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	6707N87	000000
19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	12,360	Forward/Reverse, Start/Stop, Continuous	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	6707N76	000000

Through-Bore Rigid Shaft Couplings—For Round Shafts


	Through Bore

To Order: For through-bore shaft couplings, please specify your shaft diameter in 0.001” or 0.1 mm increments within the range listed.

Through-bore couplings connect same-size shafts.

Choose a Shaft Diameter	Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion		Each
0.375" to 0.500"	1 7/8"	1 1/4"	Steel	7,500	625	Forward/Reverse, Start/Stop, Continuous	3509N11	0000000
0.375" to 0.750"	2 5/8"	1 3/4"	Steel	7,500	2,540	Forward/Reverse, Start/Stop, Continuous	3509N12	000000
0.500" to 1.000"	3"	2"	Steel	6,500	2,670	Forward/Reverse, Start/Stop, Continuous	3509N13	000000
0.500" to 1.250"	3 3/8"	2 1/4"	Steel	5,500	3,810	Forward/Reverse, Start/Stop, Continuous	3509N14	000000
0.750" to 1.500"	3 3/4"	2 1/2"	Steel	4,000	4,575	Forward/Reverse, Start/Stop, Continuous	3509N15	000000
0.750" to 1.750"	4 1/2"	3"	Steel	4,000	8,110	Forward/Reverse, Start/Stop, Continuous	3509N16	000000
0.750" to 2.000"	4 7/8"	3 1/4"	Steel	4,000	9,275	Forward/Reverse, Start/Stop, Continuous	3509N17	000000
9.6 mm to 12.7 mm	48 mm	32 mm	Steel	7,500	625	Forward/Reverse, Start/Stop, Continuous	3509N51	000000
9.6 mm to 19.0 mm	67 mm	44 mm	Steel	7,500	2,540	Forward/Reverse, Start/Stop, Continuous	3509N52	000000
12.7 mm to 25.4 mm	76 mm	51 mm	Steel	6,500	2,670	Forward/Reverse, Start/Stop, Continuous	3509N53	000000
12.7 mm to 31.7 mm	86 mm	57 mm	Steel	5,500	3,810	Forward/Reverse, Start/Stop, Continuous	3509N54	000000
19.1 mm to 38.1 mm	95 mm	64 mm	Steel	4,000	4,575	Forward/Reverse, Start/Stop, Continuous	3509N55	000000
19.1 mm to 44.4 mm	114 mm	76 mm	Steel	4,000	8,110	Forward/Reverse, Start/Stop, Continuous	3509N56	000000
19.1 mm to 50.8 mm	124 mm	83 mm	Steel	4,000	9,275	Forward/Reverse, Start/Stop, Continuous	3509N57	000000

Step-Down Rigid Shaft Couplings—For Keyed Shafts


	Step Down

Step-down couplings connect different-size shafts.

Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	Choose a Shaft Dia. (A)	Choose a Shaft Dia. (B)	Choose a Keyway Size (Wd. × Dp.) for Shaft Dia. (A)	Choose a Keyway Size (Wd. × Dp.) for Shaft Dia. (B)		Each
1 7/8"	1 1/4"	Steel	7,500	370	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.500"	0.375" to 0.500"	3/32" × 3/32", 1/8" × 3/32"	3/32" × 3/32", 1/8" × 3/32"	6387N53	0000000
1 7/8"	1 1/4"	Steel	7,500	370	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.500"	9.6 mm to 12.7 mm	3/32" × 3/32", 1/8" × 3/32"	4 mm × 2 mm, 5 mm × 2.3 mm	6387N463	000000
2 5/8"	1 3/4"	Steel	7,500	1,500	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.750"	0.375" to 0.750"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	6387N396	000000
2 5/8"	1 3/4"	Steel	7,500	1,500	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.750"	9.6 mm to 19.0 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	6387N58	000000
3"	2"	Steel	6,500	1,580	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.000"	0.500" to 1.000"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6387N35	000000
3"	2"	Steel	6,500	1,580	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.000"	12.7 mm to 25.4 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6387N142	000000
3 3/8"	2 1/4"	Steel	5,500	2,250	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.250"	0.500" to 1.250"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	6387N125	000000
3 3/8"	2 1/4"	Steel	5,500	2,250	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.250"	12.7 mm to 31.7 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6387N202	000000
3 3/4"	2 1/2"	Steel	4,000	2,710	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.500"	0.750" to 1.500"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6387N221	000000
3 3/4"	2 1/2"	Steel	4,000	2,710	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.500"	19.1 mm to 38.1 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	6387N1	000000
4 1/2"	3"	Steel	4,000	4,800	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.750"	0.750" to 1.750"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	6387N161	000000
4 1/2"	3"	Steel	4,000	4,800	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.750"	19.1 mm to 44.4 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	6387N468	000000
4 7/8"	3 1/4"	Steel	4,000	5,495	Forward/Reverse, Start/Stop, Continuous	0.750" to 2.000"	0.750" to 2.000"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	6387N69	000000
4 7/8"	3 1/4"	Steel	4,000	5,495	Forward/Reverse, Start/Stop, Continuous	0.750" to 2.000"	19.1 mm to 50.8 mm	3/32" × 3/32", 1/8" × 3/32", 3/16" × 3/32", 1/4" × 1/8", 5/16" × 5/32", 3/8" × 3/16", 1/2" × 1/4"	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	6387N407	000000
48 mm	32 mm	Steel	7,500	370	Forward/Reverse, Start/Stop, Continuous	9.6 mm to 12.7 mm	9.6 mm to 12.7 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm	6387N564	000000
67 mm	44 mm	Steel	7,500	1,500	Forward/Reverse, Start/Stop, Continuous	9.6 mm to 19.0 mm	9.6 mm to 19.0 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm	6387N239	000000
76 mm	51 mm	Steel	6,500	1,580	Forward/Reverse, Start/Stop, Continuous	12.7 mm to 25.4 mm	12.7 mm to 25.4 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6387N328	000000
86 mm	57 mm	Steel	5,500	2,250	Forward/Reverse, Start/Stop, Continuous	12.7 mm to 31.7 mm	12.7 mm to 31.7 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm	6387N574	000000
95 mm	64 mm	Steel	4,000	2,710	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 38.1 mm	19.1 mm to 38.1 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm	6387N356	000000
114 mm	76 mm	Steel	4,000	4,800	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 44.4 mm	19.1 mm to 44.4 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm	6387N509	000000
124 mm	83 mm	Steel	4,000	5,495	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 50.8 mm	19.1 mm to 50.8 mm	2 mm × 2 mm, 3 mm × 2 mm, 4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	4 mm × 2 mm, 5 mm × 2.3 mm, 6 mm × 2.8 mm, 8 mm × 3.3 mm, 10 mm × 3.3 mm, 12 mm × 3.3 mm, 14 mm × 3.8 mm	6387N257	000000

Step-Down Rigid Shaft Couplings—For Round Shafts


	Step Down

To Order: For step-down shaft couplings, please specify your shaft diameter for each end of the coupling in 0.001” or 0.1 mm increments within the ranges listed.

Step-down couplings connect different-size shafts.

Overall Lg.	OD	Material	Max. Rotation Speed, rpm	Max. Torque, in·lbf	For Rotary Motion	Choose a Shaft Dia. (A)	Choose a Shaft Dia. (B)		Each
1 7/8"	1 1/4"	Steel	7,500	270	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.500"	0.375" to 0.500"	3509N21	0000000
1 7/8"	1 1/4"	Steel	7,500	270	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.500"	9.6 mm to 12.7 mm	3509N01	000000
2 5/8"	1 3/4"	Steel	7,500	1,120	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.750"	0.375" to 0.750"	3509N22	000000
2 5/8"	1 3/4"	Steel	7,500	1,120	Forward/Reverse, Start/Stop, Continuous	0.375" to 0.750"	9.6 mm to 19.0 mm	3509N02	000000
3"	2"	Steel	6,500	1,180	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.000"	0.500" to 1.000"	3509N23	000000
3"	2"	Steel	6,500	1,180	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.000"	12.7 mm to 25.4 mm	3509N03	000000
3 3/8"	2 1/4"	Steel	5,500	1,690	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.250"	0.500" to 1.250"	3509N24	000000
3 3/8"	2 1/4"	Steel	5,500	1,690	Forward/Reverse, Start/Stop, Continuous	0.500" to 1.250"	12.7 mm to 31.7 mm	3509N04	000000
3 3/4"	2 1/2"	Steel	4,000	2,030	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.500"	0.750" to 1.500"	3509N25	000000
3 3/4"	2 1/2"	Steel	4,000	2,030	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.500"	19.1 mm to 38.1 mm	3509N05	000000
4 1/2"	3"	Steel	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.750"	0.750" to 1.750"	3509N26	000000
4 1/2"	3"	Steel	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	0.750" to 1.750"	19.1 mm to 44.4 mm	3509N06	000000
4 7/8"	3 1/4"	Steel	4,000	4,120	Forward/Reverse, Start/Stop, Continuous	0.750" to 2.000"	0.750" to 2.000"	3509N27	000000
4 7/8"	3 1/4"	Steel	4,000	4,120	Forward/Reverse, Start/Stop, Continuous	0.750" to 2.000"	19.1 mm to 50.8 mm	3509N07	000000
48 mm	32 mm	Steel	7,500	270	Forward/Reverse, Start/Stop, Continuous	9.6 mm to 12.7 mm	9.6 mm to 12.7 mm	3509N61	000000
67 mm	44 mm	Steel	7,500	1,120	Forward/Reverse, Start/Stop, Continuous	9.6 mm to 19.0 mm	9.6 mm to 19.0 mm	3509N62	000000
76 mm	51 mm	Steel	6,500	1,180	Forward/Reverse, Start/Stop, Continuous	12.7 mm to 25.4 mm	12.7 mm to 25.4 mm	3509N63	000000
86 mm	57 mm	Steel	5,500	1,690	Forward/Reverse, Start/Stop, Continuous	12.7 mm to 31.7 mm	12.7 mm to 31.7 mm	3509N64	000000
95 mm	64 mm	Steel	4,000	2,030	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 38.1 mm	19.1 mm to 38.1 mm	3509N65	000000
114 mm	76 mm	Steel	4,000	3,600	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 44.4 mm	19.1 mm to 44.4 mm	3509N66	000000
124 mm	83 mm	Steel	4,000	4,120	Forward/Reverse, Start/Stop, Continuous	19.1 mm to 50.8 mm	19.1 mm to 50.8 mm	3509N67	000000