Couplings for 11/16" Shafts

Filter by

System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

10 mm

11 mm

12 mm

12.500 mm to 40.000 mm

Shaft Type

Construction

Keyway Width

Material

Overall Length

Length

Shaft Mount Type

Keyway Depth

For Shaft Misalignment Type

For Rotary Motion

Set Screw Material

Number of Set Screws Included

Set Screw Drive Style

Hex

Component

Hub

Shaft Coupling Flexibility

Flexible

Thread Size

1/4"-20

Drive Style

Hex

Clamping Screw Material

Stainless Steel

Steel

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

Yes

RoHS

Compliant

REACH

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Forward

How can we improve?

50 Products

Set Screw Flexible Shaft Couplings


Hubs, Split Spider, and Retaining Ring Shown Assembled	(Each Component Sold Separately)

Hubs and Spider Shown Assembled	(Each Component Sold Separately)

Each hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place. Also known as Lovejoy® couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.

A complete coupling consists of two hubs and one spider, or two hubs, one split spider, and one retaining ring (all components sold separately). Split spiders are easier to install and replace than standard spiders because there’s no need for tools or removing your hubs. Twist-lock them in place using a retaining ring.

Buna-N—Buna-N spiders provide good vibration damping and chemical resistance.

Hytrel—Hytrel spiders provide fair vibration damping and excellent chemical resistance.

Polyurethane Rubber—Polyurethane spiders and split spiders provide fair vibration damping and good chemical resistance.

Hubs							Buna-N Spiders								Hytrel Spiders								Polyurethane Spiders								Polyurethane Split Spiders								347 Stainless Steel Retaining Rings
									Misalignment Capability								Misalignment Capability								Misalignment Capability								Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia.		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each		Each







			Iron Hubs

			1 63/64"	1 23/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K12	000000	14,000	43	0.015"	1°	-40 to 212	Buna-N	6408K73	00000	3,600	110	0.015"	0.5°	-55 to 245	Hytrel	6408K93	000000	—	—	—	—	—	—	———	0	—	—	—	—	—	—	———	0	———	0


			2 1/8"	1 3/4"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K13	00000	11,000	90	0.015"	1°	-40 to 212	Buna-N	6408K74	00000	3,600	225	0.015"	0.5°	-55 to 245	Hytrel	6408K94	00000	3,600	135	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K11	000000	—	—	—	—	—	—	———	0	———	0
			2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K14	00000	9,000	140	0.015"	1°	-40 to 212	Buna-N	6408K75	00000	3,600	400	0.015"	0.5°	-55 to 245	Hytrel	6408K95	00000	3,600	210	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K13	00000	9,200	670	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K33	000000	2393K23	000000
			2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K15	00000	9,000	140	0.015"	1°	-40 to 212	Buna-N	6408K75	00000	3,600	400	0.015"	0.5°	-55 to 245	Hytrel	6408K95	00000	3,600	210	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K13	00000	9,200	670	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K33	00000	2393K23	00000
			2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K16	00000	7,000	315	0.015"	1°	-40 to 212	Buna-N	6408K77	00000	3,600	790	0.015"	0.5°	-55 to 245	Hytrel	6408K96	000000	3,600	475	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K15	00000	7,700	1,110	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K34	000000	2393K24	00000
			3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K17	00000	7,000	315	0.015"	1°	-40 to 212	Buna-N	6408K77	00000	3,600	790	0.015"	0.5°	-55 to 245	Hytrel	6408K96	000000	3,600	475	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K15	00000	7,700	1,110	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K34	000000	2393K24	00000
			4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	11/16"	6408K18	00000	5,000	790	0.015"	1°	-40 to 212	Buna-N	6408K79	00000	3,600	2,265	0.015"	0.5°	-55 to 245	Hytrel	6408K97	000000	3,600	1,185	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K17	000000	5,900	2,180	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K35	000000	2393K25	000000

Set Screw Shaft Collars

Slide these traditional collars from one end of the shaft and tighten the set screw. They dig into the shaft for a secure hold, but one that leaves a gouge. For maximum holding power, make sure the set screw is harder than the shaft.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

				Set Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		11/16"	1 1/4"	9/16"	Hex Socket	1	9414T14	00000


		Zinc-Plated Carbon Steel



				11/16"	1 1/4"	9/16"	Hex Socket	1	6432K24	0000


				303 Stainless Steel



						11/16"	1 1/4"	9/16"	Hex Socket	1	6462K24	00000


						316 Stainless Steel



								11/16"	1 1/4"	9/16"	Hex Socket	1	9943K24	00000


								Aluminum



										11/16"	1 1/4"	9/16"	Hex Socket	1	9946K18	0000

Oversized Shaft Collars

Wider and thicker with a larger clamping screw, these shaft collars deliver a stronger grip than standard collars. Slide them from one end of your shaft and tighten the screw. They clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

				Clamping Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		11/16"	1 3/4"	5/8"	Socket Head	1	9951K38	000000

Oversized Two-Piece Shaft Collars

For Round Shafts

Wider and thicker with larger clamping screws, these deliver a more powerful hold than standard two-piece collars. Attach them anywhere along a shaft when other components are already installed or you can't access the ends. They grip evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

				Clamping Screw		For Round Shafts
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		11/16"	1 3/4"	5/8"	Socket Head	2	8386K38	000000

Quick-Disconnect (QD) Bushings


Clamp-On Shaft Mount

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing trade number. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

		Keyway
	Overall Wd.	Wd.	Dp.	Fastener Tightening Torque, in·lbf	Material	Includes	For Shaft Dia.		Each
Clamp-On Shaft Mount







				Bushing Trade Number SH

				1 5/16"	3/16"	3/32"	108	Sintered Steel	Clamping Screws	11/16"	6086K226	000000

Face-Mount Shaft Collars

Mount components into the tapped holes on the face of these collars. They slide from one end of a shaft and clamp firmly and evenly to prevent marring, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

				Clamping Screw			Mounting Holes
	For Shaft Dia.	OD	Wd.	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of		Each
Black-Oxide Carbon Steel



		11/16"	1 1/2"	1/2"	Socket Head	1	No	1/4"-20	2	9677T24	000000


		303 Stainless Steel



				11/16"	1 1/2"	1/2"	Socket Head	1	No	1/4"-20	2	5631T14	00000

Shaft Collars

Slide these collars from one end of your shaft and tighten the clamping screw. They grip firmly and evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

				Clamping Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		11/16"	1 1/2"	1/2"	Socket Head	1	6435K71	00000


		Zinc-Plated Carbon Steel



				11/16"	1 1/2"	1/2"	Socket Head	1	9961K21	0000


				303 Stainless Steel



						11/16"	1 1/2"	1/2"	Socket Head	1	6435K28	00000


						316 Stainless Steel



								11/16"	1 1/2"	1/2"	Socket Head	1	9421T11	00000


								Aluminum



										11/16"	1 1/2"	1/2"	Socket Head	1	6157K68	0000

Two-Piece Shaft Collars

For Round Shafts

For Keyed Shafts

Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

Chrome-Plated Carbon Steel—Resist moisture and mild cleaning solutions better than zinc-plated collars.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

						For Round Shafts		For Keyed Shafts
				Clamping Screw				Keyway
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each	Wd.	Dp.		Each
Black-Oxide Carbon Steel



		11/16"	1 1/2"	1/2"	Socket Head	2	6436K28	000000	3/16"	3/32"	3357K24	000000


		Zinc-Plated Carbon Steel



				11/16"	1 1/2"	1/2"	Socket Head	2	2380K21	00000	—	—	———	0


				Chrome-Plated Carbon Steel



						11/16"	1 1/2"	1/2"	Socket Head	2	3370K71	00000	—	—	———	0


						303 Stainless Steel



								11/16"	1 1/2"	1/2"	Socket Head	2	6436K89	00000	3/16"	3/32"	3329K24	00000


								316 Stainless Steel



										11/16"	1 1/2"	1/2"	Socket Head	2	9633T14	00000	—	—	———	0


										Aluminum



												11/16"	1 1/2"	1/2"	Socket Head	2	6436K137	00000	—	—	———	0