Minimum Plain Bore Sprockets

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213 Products

Idler Sprockets

Maintain constant tension on your roller chain to reduce wear and vibration. These sprockets press against the chain to take up slack and rotate freely on bearings to keep the chain moving smoothly. They’re often paired with roller chain tensioners.

For Single Strand

Ball Bearing

Sleeve Bearing

Ball Bearing—Smoother than smooth—the balls inside these bearings roll nearly friction-free to handle high speeds. All are sealed to keep lubricant in and dust out.

Sleeve Bearing—With no moving parts, sleeve bearings are best for dirty environments. They generate more friction than ball bearings, making them less suitable for high-speed applications. Made of porous bronze embedded with oil, all are self-lubricating.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

Wear-Resistant Steel with Hardened Teeth—These sprockets have teeth that are hardened from the tip to the base so they withstand chain contact and wear evenly. That means fewer broken teeth and a longer lifespan than sprockets with unhardened or tip-hardened teeth. Steel is best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	For Shaft Dia.	OD	Bearing Material		Each
Ball Bearing







				Steel

				25	ANSI	1/4"	20	3/8"	1 3/4"	Steel	6663K11	000000


				35	ANSI	3/8"	19	3/8"	2 1/2"	Steel	6663K21	00000
				35	ANSI	3/8"	19	1/2"	2 1/2"	Steel	6663K22	00000
				40	ANSI	1/2"	18	1/2"	3 1/8"	Steel	6663K41	00000
				40	ANSI	1/2"	18	5/8"	3 1/8"	Steel	6663K42	00000
				41	ANSI	1/2"	18	1/2"	3 1/8"	Steel	6663K31	00000
				41	ANSI	1/2"	18	5/8"	3 1/8"	Steel	6663K32	00000
				50	ANSI	5/8"	17	1/2"	3 3/4"	Steel	6663K51	00000
				50	ANSI	5/8"	17	5/8"	3 3/4"	Steel	6663K52	00000
				60	ANSI	3/4"	15	1/2"	4"	Steel	6663K61	00000
				60	ANSI	3/4"	15	5/8"	4"	Steel	6663K62	00000


				80	ANSI	1"	12	3/4"	4 5/16"	Steel	6663K63	00000
				100	ANSI	1 1/4"	11	3/4"	5"	Steel	6663K291	000000
				120	ANSI	1 1/2"	10	1"	5 1/2"	Steel	6663K292	000000
				05B	ISO	8 mm	23	16 mm	62 mm	Steel	4182N11	00000
				06B	ISO	3/8"	21	16 mm	68 mm	Steel	4182N12	00000
				08B	ISO	1/2"	16	16 mm	70 mm	Steel	4182N15	00000
				08B	ISO	1/2"	18	16 mm	78 mm	Steel	4182N16	00000
				10B	ISO	5/8"	15	16 mm	93 mm	Steel	4182N17	00000
				10B	ISO	5/8"	17	16 mm	93 mm	Steel	4182N18	00000
				12B	ISO	3/4"	15	16 mm	100 mm	Steel	4182N19	00000


				16B	ISO	1"	12	20 mm	109 mm	Steel	4182N2	00000




						Wear-Resistant Steel with Hardened Teeth

						25	ANSI	1/4"	20	3/8"	1 3/4"	Steel	6663K191	00000


						35	ANSI	3/8"	19	3/8"	2 1/2"	Steel	6663K192	00000
						35	ANSI	3/8"	19	1/2"	2 1/2"	Steel	6663K1	00000
						35	ANSI	3/8"	20	5/8"	2 9/16"	Steel	6663K23	00000
						40	ANSI	1/2"	17	5/8"	3"	Steel	6663K43	00000
						40	ANSI	1/2"	18	1/2"	3 1/8"	Steel	6663K193	00000
						40	ANSI	1/2"	18	5/8"	3 1/8"	Steel	6663K194	00000
						40	ANSI	1/2"	25	5/8"	4 1/4"	Steel	6663K201	00000
						40	ANSI	1/2"	35	5/8"	5 7/8"	Steel	6663K202	00000
						40	ANSI	1/2"	48	5/8"	7 15/16"	Steel	6663K203	00000
						41	ANSI	1/2"	18	1/2"	3 1/8"	Steel	6663K2	00000


						41	ANSI	1/2"	18	5/8"	3 1/8"	Steel	6663K3	00000
						50	ANSI	5/8"	15	5/8"	3 5/16"	Steel	6663K44	00000
						50	ANSI	5/8"	17	1/2"	3 3/4"	Steel	6663K195	00000
						50	ANSI	5/8"	17	5/8"	3 3/4"	Steel	6663K196	00000
						50	ANSI	5/8"	25	3/4"	5 5/16"	Steel	6663K204	00000
						50	ANSI	5/8"	39	3/4"	8 1/8"	Steel	6663K205	000000
60						ANSI	3/4"	12	5/8"	3 1/4"	Steel	6663K206	00000
60	ANSI					3/4"	13	5/8"	3 1/2"	Steel	6663K53	00000
60	ANSI					3/4"	15	5/8"	4"	Steel	6663K197	00000
60	ANSI					3/4"	17	5/8"	4 7/16"	Steel	6663K198	000000


80	ANSI	1"	12			3/4"	4 5/16"	Steel	6663K4	00000


Sleeve Bearing







						Wear-Resistant Steel with Hardened Teeth

						35	ANSI	3/8"	20	1/2"	2 9/16"	Bronze	6663K12	00000


						40, 41	ANSI	1/2"	15	1/2"	2 5/8"	Bronze	6663K13	00000
						50	ANSI	5/8"	15	1/2"	3 5/16"	Bronze	6663K14	00000
						60	ANSI	3/4"	14	1/2"	3 3/4"	Bronze	6663K15	00000

For Double Strand

Ball Bearing

Ball Bearing—Smoother than smooth—the balls inside these bearings roll nearly friction-free to handle high speeds. All are sealed to keep lubricant in and dust out.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	For Shaft Dia.	OD	Bearing Material		Each
Ball Bearing







				Steel

				35-2	ANSI	3/8"	19	1/2"	2 1/2"	Steel	6260K1	000000


				35-2	ANSI	3/8"	19	5/8"	2 1/2"	Steel	6260K2	00000
				40-2	ANSI	1/2"	18	1/2"	3 1/8"	Steel	6260K3	000000
				40-2	ANSI	1/2"	18	5/8"	3 1/8"	Steel	6260K4	000000
				50-2	ANSI	5/8"	17	1/2"	3 3/4"	Steel	6260K5	000000
				50-2	ANSI	5/8"	17	5/8"	3 3/4"	Steel	6260K6	000000
				60-2	ANSI	3/4"	15	1/2"	4"	Steel	6260K7	000000
				60-2	ANSI	3/4"	15	5/8"	4"	Steel	6260K8	000000
				80-2	ANSI	1"	12	3/4"	4 5/16"	Steel	6260K9	000000

Flat Sprockets

Save space and cut weight—these sprockets don’t have a raised hub so they’re best for tight spots and lightweight designs. Bolt or weld them to components and mounting surfaces, or add a custom hub. Although they are versatile, they’re harder to align than sprockets with hubs.

Sprocket teeth mesh with your roller chain to smoothly transmit power. These U.S.-made sprockets have machined teeth for a more precise fit than flame-cut or punched teeth, allowing them to glide in and out of the chain to reduce wear and extend chain life.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

Plain Bore—Plain bore sprockets give you options—machine a custom bore, weld, or press-fit them in place. They're sized to the minimum shaft diameter listed and are machinable up to the maximum.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	OD	Bore Type	For Shaft Dia.		Each
For Single Strand







				Steel

				35	ANSI	3/8"	15	2"	Plain	1/2" to 1 23/64"	2299K304	000000


				35	ANSI	3/8"	16	2 1/8"	Plain	1/2" to 1 15/32"	2299K305	00000
				35	ANSI	3/8"	17	2 1/4"	Plain	1/2" to 1 19/32"	2299K306	00000
				35	ANSI	3/8"	18	2 3/8"	Plain	1/2" to 1 23/32"	2299K307	00000
				35	ANSI	3/8"	19	2 1/2"	Plain	1/2" to 1 27/32"	2299K308	00000
				35	ANSI	3/8"	20	2 9/16"	Plain	1/2" to 1 61/64"	2299K309	00000
				35	ANSI	3/8"	21	2 11/16"	Plain	1/2" to 2 5/64"	2299K311	00000
				35	ANSI	3/8"	22	2 13/16"	Plain	1/2" to 2 13/64"	2299K312	00000
				35	ANSI	3/8"	23	2 15/16"	Plain	1/2" to 2 5/16"	2299K313	00000
				35	ANSI	3/8"	24	3 1/16"	Plain	1/2" to 2 7/16"	2299K314	00000
				35	ANSI	3/8"	25	3 3/16"	Plain	1/2" to 2 9/16"	2299K315	00000


				35	ANSI	3/8"	30	3 13/16"	Plain	1/2" to 3 5/32"	2299K316	00000
				35	ANSI	3/8"	35	4 3/8"	Plain	5/8" to 3 3/4"	2299K317	00000
				35	ANSI	3/8"	40	5"	Plain	19/32" to 4 23/64"	2299K318	00000
				35	ANSI	3/8"	45	5 9/16"	Plain	19/32" to 4 61/64"	2299K319	00000
				35	ANSI	3/8"	60	7 3/8"	Plain	23/32" to 6 3/4"	2299K321	00000
				40	ANSI	1/2"	12	2 3/16"	Plain	1/2" to 1 21/64"	2299K18	00000
				40	ANSI	1/2"	13	2 5/16"	Plain	1/2" to 1 1/2"	2299K19	00000
				40	ANSI	1/2"	14	2 1/2"	Plain	1/2" to 1 21/32"	2299K21	00000
				40	ANSI	1/2"	15	2 5/8"	Plain	5/8" to 1 13/16"	2299K22	00000
				40	ANSI	1/2"	16	2 13/16"	Plain	5/8" to 1 63/64"	2299K23	00000


				40	ANSI	1/2"	17	3"	Plain	5/8" to 2 9/64"	2299K24	00000
				40	ANSI	1/2"	18	3 1/8"	Plain	5/8" to 2 19/64"	2299K25	00000
				40	ANSI	1/2"	19	3 5/16"	Plain	5/8" to 2 29/64"	2299K26	00000
				40	ANSI	1/2"	20	3 7/16"	Plain	5/8" to 2 5/8"	2299K27	00000
				40	ANSI	1/2"	21	3 5/8"	Plain	5/8" to 2 25/32"	2299K28	00000
				40	ANSI	1/2"	22	3 3/4"	Plain	5/8" to 2 15/16"	2299K29	00000
				40	ANSI	1/2"	23	3 15/16"	Plain	5/8" to 3 3/32"	2299K31	00000
				40	ANSI	1/2"	24	4 1/8"	Plain	5/8" to 3 17/64"	2299K32	00000
				40	ANSI	1/2"	25	4 1/4"	Plain	5/8" to 3 27/64"	2299K33	00000
				40	ANSI	1/2"	30	5 1/16"	Plain	19/32" to 4 7/32"	2299K34	00000


				40	ANSI	1/2"	35	5 7/8"	Plain	19/32" to 5 1/64"	2299K35	00000
				40	ANSI	1/2"	40	6 5/8"	Plain	23/32" to 5 13/16"	2299K36	00000
				40	ANSI	1/2"	45	7 7/16"	Plain	23/32" to 6 39/64"	2299K37	00000
				40	ANSI	1/2"	60	9 13/16"	Plain	23/32" to 9"	2299K38	00000
				50	ANSI	5/8"	12	2 11/16"	Plain	5/8" to 1 43/64"	2299K39	00000
				50	ANSI	5/8"	13	2 15/16"	Plain	5/8" to 1 7/8"	2299K41	00000
				50	ANSI	5/8"	14	3 1/8"	Plain	5/8" to 2 5/64"	2299K42	00000
				50	ANSI	5/8"	15	3 5/16"	Plain	5/8" to 2 9/32"	2299K43	00000
				50	ANSI	5/8"	16	3 1/2"	Plain	5/8" to 2 31/64"	2299K44	00000
				50	ANSI	5/8"	17	3 3/4"	Plain	5/8" to 2 11/16"	2299K45	00000


				50	ANSI	5/8"	18	3 15/16"	Plain	5/8" to 2 57/64"	2299K46	00000
				50	ANSI	5/8"	19	4 1/8"	Plain	5/8" to 3 5/64"	2299K47	00000
				50	ANSI	5/8"	20	4 5/16"	Plain	3/4" to 3 9/32"	2299K48	00000
				50	ANSI	5/8"	21	4 1/2"	Plain	3/4" to 3 31/64"	2299K49	00000
50				ANSI	5/8"	22	4 3/4"	Plain	3/4" to 3 11/16"	2299K51	00000
50	ANSI			5/8"	23	4 15/16"	Plain	3/4" to 3 57/64"	2299K52	00000
50	ANSI			5/8"	24	5 1/8"	Plain	23/32" to 4 5/64"	2299K53	00000
50	ANSI			5/8"	25	5 5/16"	Plain	23/32" to 4 9/32"	2299K54	00000
50	ANSI			5/8"	30	6 5/16"	Plain	23/32" to 5 9/32"	2299K55	00000
50	ANSI	5/8"		35	7 5/16"	Plain	23/32" to 6 9/32"	2299K56	00000
50	ANSI	5/8"	40	8 5/16"	Plain	23/32" to 7 9/32"	2299K57	00000
50	ANSI	5/8"	45	9 5/16"	Plain	23/32" to 8 9/32"	2299K58	00000
50	ANSI	5/8"	60	12 5/16"	Plain	15/16" to 11 17/64"	2299K59	00000
60	ANSI	3/4"	12	3 1/4"	Plain	3/4" to 2 1/64"	2299K63	00000
60	ANSI	3/4"	13	3 1/2"	Plain	3/4" to 2 1/4"	2299K64	00000
60	ANSI	3/4"	14	3 3/4"	Plain	3/4" to 2 1/2"	2299K65	00000
60	ANSI	3/4"	15	4"	Plain	3/4" to 2 3/4"	2299K66	00000
60	ANSI	3/4"	16	4 1/4"	Plain	3/4" to 2 63/64"	2299K67	00000
60	ANSI	3/4"	17	4 7/16"	Plain	3/4" to 3 7/32"	2299K68	00000
60	ANSI	3/4"	18	4 11/16"	Plain	3/4" to 3 15/32"	2299K69	00000
60	ANSI	3/4"	19	4 15/16"	Plain	3/4" to 3 45/64"	2299K71	00000
60	ANSI	3/4"	20	5 3/16"	Plain	3/4" to 3 61/64"	2299K72	00000
60	ANSI	3/4"	21	5 7/16"	Plain	3/4" to 4 3/16"	2299K73	00000
60	ANSI	3/4"	22	5 11/16"	Plain	3/4" to 4 7/16"	2299K74	00000
60	ANSI	3/4"	23	5 15/16"	Plain	3/4" to 4 43/64"	2299K75	00000
60	ANSI	3/4"	24	6 1/8"	Plain	23/32" to 4 29/32"	2299K76	00000
60	ANSI	3/4"	25	6 3/8"	Plain	23/32" to 5 5/32"	2299K77	00000
60	ANSI	3/4"	30	7 9/16"	Plain	23/32" to 6 11/32"	2299K78	00000
60	ANSI	3/4"	35	8 3/4"	Plain	15/16" to 7 35/64"	2299K79	00000
60	ANSI	3/4"	40	10"	Plain	15/16" to 8 3/4"	2299K81	00000
60	ANSI	3/4"	45	11 3/16"	Plain	15/16" to 9 15/16"	2299K82	00000
60	ANSI	3/4"	60	14 3/4"	Plain	1 1/4" to 13 33/64"	2299K83	000000
80	ANSI	1"	12	4 5/16"	Plain	15/16" to 2 45/64"	2299K87	00000
80	ANSI	1"	13	4 11/16"	Plain	15/16" to 3 1/32"	2299K88	00000
80	ANSI	1"	14	5"	Plain	15/16" to 3 11/32"	2299K89	00000
80	ANSI	1"	15	5 5/16"	Plain	15/16" to 3 43/64"	2299K91	00000
80	ANSI	1"	16	5 5/8"	Plain	15/16" to 4"	2299K92	00000
80	ANSI	1"	17	5 15/16"	Plain	15/16" to 4"	2299K93	00000
80	ANSI	1"	18	6 1/4"	Plain	15/16" to 4 41/64"	2299K94	00000
80	ANSI	1"	19	6 9/16"	Plain	15/16" to 4 61/64"	2299K95	00000
80	ANSI	1"	20	6 15/16"	Plain	15/16" to 5 9/32"	2299K96	00000
80	ANSI	1"	21	7 1/4"	Plain	15/16" to 5 39/64"	2299K97	00000
80	ANSI	1"	22	7 9/16"	Plain	15/16" to 5 59/64"	2299K98	00000
80	ANSI	1"	23	7 7/8"	Plain	15/16" to 6 1/4"	2299K99	00000
80	ANSI	1"	24	8 3/16"	Plain	15/16" to 6 9/16"	2299K101	00000
80	ANSI	1"	25	8 1/2"	Plain	15/16" to 6 7/8"	2299K102	00000
80	ANSI	1"	30	10 1/8"	Plain	1 3/16" to 8 31/64"	2299K103	00000
80	ANSI	1"	35	11 11/16"	Plain	1 3/16" to 10 5/64"	2299K104	000000
80	ANSI	1"	40	13 5/16"	Plain	1 3/16" to 11 43/64"	2299K105	000000
80	ANSI	1"	45	14 7/8"	Plain	1 1/4" to 13 9/32"	2299K106	000000
80	ANSI	1"	60	19 11/16"	Plain	1 1/4" to 18 1/16"	2299K107	000000
06B	ISO	3/8"	15	51 mm	Plain	8 mm to 35 mm	6836N111	00000
06B	ISO	3/8"	16	54 mm	Plain	10 mm to 39 mm	6836N112	00000
06B	ISO	3/8"	17	57 mm	Plain	10 mm to 42 mm	6836N113	00000
06B	ISO	3/8"	18	60 mm	Plain	10 mm to 45 mm	6836N114	00000
06B	ISO	3/8"	20	66 mm	Plain	10 mm to 51 mm	6836N116	00000
06B	ISO	3/8"	21	69 mm	Plain	10 mm to 54 mm	6836N117	00000
06B	ISO	3/8"	22	70 mm	Plain	10 mm to 57 mm	6836N118	00000
06B	ISO	3/8"	26	84 mm	Plain	10 mm to 69 mm	6836N123	00000
06B	ISO	3/8"	28	90 mm	Plain	10 mm to 75 mm	6836N125	00000
06B	ISO	3/8"	36	114 mm	Plain	12 mm to 100 mm	6836N131	00000
06B	ISO	3/8"	40	126 mm	Plain	14 mm to 112 mm	6836N133	00000
06B	ISO	3/8"	60	187 mm	Plain	18 mm to 172 mm	6836N139	00000
08B	ISO	1/2"	13	60 mm	Plain	10 mm to 38 mm	6836N151	00000
08B	ISO	1/2"	14	64 mm	Plain	10 mm to 43 mm	6836N152	00000
08B	ISO	1/2"	15	68 mm	Plain	10 mm to 47 mm	6836N153	00000
08B	ISO	1/2"	16	72 mm	Plain	10 mm to 51 mm	6836N154	00000
08B	ISO	1/2"	17	76 mm	Plain	10 mm to 55 mm	6836N155	00000
08B	ISO	1/2"	18	80 mm	Plain	10 mm to 59 mm	6836N156	00000
08B	ISO	1/2"	20	88 mm	Plain	10 mm to 67 mm	6836N158	00000
08B	ISO	1/2"	21	92 mm	Plain	12 mm to 71 mm	6836N159	00000
08B	ISO	1/2"	22	96 mm	Plain	12 mm to 75 mm	6836N161	00000
08B	ISO	1/2"	24	104 mm	Plain	12 mm to 83 mm	6836N163	00000
08B	ISO	1/2"	25	108 mm	Plain	12 mm to 87 mm	6836N164	00000
08B	ISO	1/2"	26	112 mm	Plain	16 mm to 92 mm	6836N165	00000
08B	ISO	1/2"	27	116 mm	Plain	16 mm to 96 mm	6836N166	00000
08B	ISO	1/2"	32	136 mm	Plain	15 mm to 116 mm	6836N172	00000
08B	ISO	1/2"	36	153 mm	Plain	15 mm to 132 mm	6836N176	00000
08B	ISO	1/2"	37	116 mm	Plain	15 mm to 136 mm	6836N177	00000
08B	ISO	1/2"	39	122 mm	Plain	18 mm to 144 mm	6836N179	00000

Plastic Idler Sprockets

Quiet-running, lightweight, and naturally rust resistant. Choose these sprockets for noise-sensitive areas, designs with weight constraints, and machines that require frequent washdowns. All of these sprockets maintain constant tension on your roller chain to reduce wear and vibration. They press against the chain to take up slack and rotate freely on bearings to keep the chain moving smoothly. They’re often paired with roller chain tensioners.

For Single Strand

Ball Bearing—Smoother than smooth—the balls inside these bearings roll nearly friction-free to handle high speeds. All are sealed to keep lubricant in and dust out.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	For Shaft Dia.	OD	Bearing Material		Each
Ball Bearing



		40	ANSI	1/2"	17	5/8"	3"	Steel	8255K11	000000


		40	ANSI	1/2"	17	3/4"	3"	Steel	8255K31	00000
		50	ANSI	5/8"	15	5/8"	3 5/16"	Steel	8255K12	00000
		50	ANSI	5/8"	15	3/4"	3 5/16"	Steel	8255K32	00000
		60	ANSI	3/4"	13	5/8"	3 1/2"	Steel	8255K13	00000
		60	ANSI	3/4"	13	3/4"	3 1/2"	Steel	8255K33	00000
		80	ANSI	1"	12	5/8"	4 3/8"	Steel	8255K14	00000

Flange-Mount Idler Rotary Shafts

Mount the flange to a machine or wall to support idler sprockets and pulleys in tensioning applications. They include washers and a nut to position your component and hold it in place.

			Overall		Thread				Mounting Holes
	Dia.	Lg.	Lg.	Dia.	Size	Lg.	Flange Thk.	Bolt Circle Dia.	No. of	Dia.	Edge Type	Hardness Rating	Hardness		Each
Threaded End—Zinc-Plated 1215 Carbon Steel



		1/4"	3/8"	1"	1 1/16"	10-24	11/32"	9/32"	23/32"	4	5/32"	Straight	Not Rated	Not Rated	2435K11	000000


		3/8"	7/16"	1 3/16"	1 1/4"	5/16"-18	15/32"	9/32"	29/32"	4	5/32"	Straight	Not Rated	Not Rated	2435K12	00000
		1/2"	5/8"	1 1/2"	1 7/16"	7/16"-14	19/32"	9/32"	1 3/32"	4	5/32"	Straight	Not Rated	Not Rated	2435K13	00000
		5/8"	5/8"	1 21/32"	1 5/8"	1/2"-13	23/32"	5/16"	1 1/4"	4	5/32"	Straight	Not Rated	Not Rated	2435K14	00000
		3/4"	5/8"	1 27/32"	1 7/8"	5/8"-11	7/8"	11/32"	1 7/16"	4	3/16"	Straight	Not Rated	Not Rated	2435K15	00000
		1"	5/8"	2 1/8"	2 1/4"	7/8"-9	1 3/32"	13/32"	1 3/4"	4	1/4"	Straight	Not Rated	Not Rated	2435K16	00000
		8 mm	9 mm	24 mm	28 mm	M6 × 1 mm	6.6 mm	7 mm	20 mm	4	3 mm	Straight	Medium	Rockwell B84	2435K31	00000
		10 mm	11 mm	28 mm	30 mm	M8 × 1.25 mm	8.26 mm	7 mm	22 mm	4	3 mm	Straight	Medium	Rockwell B84	2435K32	00000
		12 mm	12 mm	33 mm	36 mm	M10 × 1.5 mm	9.9 mm	9 mm	26 mm	4	4 mm	Straight	Medium	Rockwell B84	2435K33	00000
		20 mm	15 mm	46 mm	50 mm	M18 × 2.5 mm	16.56 mm	11 mm	36 mm	4	6 mm	Straight	Medium	Rockwell B84	2435K34	00000

Thread-Mount Idler Rotary Shafts


Tensioner Shown with Idler Shaft (Sold Separately)	Shaft Collar End	Retaining-Ring-Grooves End

Shaft Collar End

Retaining-Ring-Grooves End

Thread these shafts into a tapped hole to support idler sprockets and pulleys in tensioning applications.

Shaft Collar End—Shafts with a shaft collar come with a grease fitting for easy lubrication of your pulleys and sprockets. Adjust the collar to the width of your component.

Retaining-Ring-Grooves End—Shafts with retaining ring grooves come with a retaining ring and spacers to position your component and hold it in place.

			Overall		Thread		Groove
	Dia.	Lg.	Lg.	Dia.	Size	Lg.	Wd.	Dia.	End-to-Groove Lg.	Edge Type	Fabrication	Hardness Rating	Hardness		Each
Shaft Collar End—1215 Carbon Steel



		1/2"	1 1/16"	2 9/32"	1"	3/8"-16	7/16"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K101	000000


		5/8"	1 1/4"	3 3/8"	1 1/8"	1/2"-20	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K102	00000
		3/4"	2 7/16"	4 3/8"	1 1/4"	1/2"-20	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K103	00000
		1"	1 1/2"	3 3/8"	1 1/2"	3/4"-16	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	1816K3	00000
		1"	2 1/2"	4 3/8"	1 1/2"	3/4"-16	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	1816K4	00000
		1"	3 1/2"	5 3/8"	1 1/2"	3/4"-16	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	1816K5	00000
		1 1/2"	3 1/4"	5 11/16"	2 1/4"	1"-14	1 5/16"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K104	00000
		1 1/2"	5 1/4"	7 11/16"	2 1/4"	1"-14	1 5/16"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K105	00000


		Retaining-Ring-Grooves End—Zinc-Plated 1215 Carbon Steel



				1/4"	3/8"	1 1/16"	1/2"	1/4"-20	21/64"	0.029"	0.21"	0.063"	Chamfered	—	Not Rated	Not Rated	2435K1	0000


				3/8"	7/16"	1 7/32"	3/4"	1/4"-20	11/32"	0.039"	0.303"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K2	00000
				1/2"	5/8"	1 9/16"	1"	5/16"-18	1/2"	0.046"	0.396"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K3	00000
				5/8"	5/8"	1 19/32"	1 1/8"	5/16"-18	17/32"	0.046"	0.485"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K4	00000
				3/4"	5/8"	1 25/32"	1 1/4"	3/8"-16	45/64"	0.056"	0.58"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K5	00000
				1"	5/8"	2"	1 1/2"	1/2"-13	15/16"	0.056"	0.835"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K6	00000
				8 mm	9 mm	28 mm	15 mm	M6 × 1 mm	8 mm	0.733 mm	6.35 mm	2.56 mm	Chamfered	—	Medium	Rockwell B84	2435K35	0000
				10 mm	11 mm	34 mm	19 mm	M8 × 1.25 mm	10.66 mm	0.99 mm	7.69 mm	3.12 mm	Chamfered	—	Medium	Rockwell B84	2435K36	00000
				12 mm	12 mm	35 mm	22 mm	M8 × 1.25 mm	10.66 mm	0.99 mm	8.71 mm	3.12 mm	Chamfered	—	Medium	Rockwell B84	2435K37	00000
				20 mm	15 mm	45 mm	31 mm	M12 × 1.75 mm	16 mm	1.422 mm	14.73 mm	4.06 mm	Chamfered	—	Medium	Rockwell B84	2435K38	00000