Plain Plate Sprockets | McMaster-Carr

Filter by

Roller Chain Trade Number

Number of Teeth

System of Measurement

Pitch

Shaft Diameter

Bore Type

Unit Price

Material

Overall Width

Bearing Type

Strand Type

Chain Standard

Sprocket Type

Hub Diameter

DFARS Specialty Metals

Exempt

RoHS

Compliant

Not Compliant

Export Control Classification Number (ECCN)

REACH

Performance

Bearing Material

Specifications Met

Width

185 Products

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	1.99"	Plain	1/2" to 1 23/64"	00000000	000000


				35	ANSI	3/8"	16	2.11"	Plain	1/2" to 1 15/32"	00000000	00000
				35	ANSI	3/8"	17	2.23"	Plain	1/2" to 1 19/32"	00000000	00000
				35	ANSI	3/8"	18	2.35"	Plain	1/2" to 1 23/32"	00000000	00000
				35	ANSI	3/8"	19	2.47"	Plain	1/2" to 1 27/32"	00000000	00000
				35	ANSI	3/8"	20	2.59"	Plain	1/2" to 1 61/64"	00000000	00000
				35	ANSI	3/8"	21	2.71"	Plain	1/2" to 2 5/64"	00000000	00000
				35	ANSI	3/8"	22	2.83"	Plain	1/2" to 2 13/64"	00000000	00000
				35	ANSI	3/8"	23	2.95"	Plain	1/2" to 2 5/16"	00000000	00000
				35	ANSI	3/8"	24	3.07"	Plain	1/2" to 2 7/16"	00000000	00000
				35	ANSI	3/8"	25	3.19"	Plain	1/2" to 2 9/16"	00000000	00000


				35	ANSI	3/8"	30	3.79"	Plain	1/2" to 3 5/32"	00000000	00000
				35	ANSI	3/8"	35	4.39"	Plain	5/8" to 3 3/4"	00000000	00000
				35	ANSI	3/8"	40	4.99"	Plain	19/32" to 4 23/64"	00000000	00000
				35	ANSI	3/8"	45	5.59"	Plain	19/32" to 4 61/64"	00000000	00000
				35	ANSI	3/8"	60	7.38"	Plain	23/32" to 6 3/4"	00000000	00000
				40	ANSI	1/2"	12	2.17"	Plain	1/2" to 1 21/64"	0000000	00000
				40	ANSI	1/2"	13	2.33"	Plain	1/2" to 1 1/2"	0000000	00000
				40	ANSI	1/2"	14	2.49"	Plain	1/2" to 1 21/32"	0000000	00000
				40	ANSI	1/2"	15	2.65"	Plain	5/8" to 1 13/16"	0000000	00000
				40	ANSI	1/2"	16	2.81"	Plain	5/8" to 1 63/64"	0000000	00000


				40	ANSI	1/2"	17	2.98"	Plain	5/8" to 2 9/64"	0000000	00000
				40	ANSI	1/2"	18	3.14"	Plain	5/8" to 2 19/64"	0000000	00000
				40	ANSI	1/2"	19	3.3"	Plain	5/8" to 2 29/64"	0000000	00000
				40	ANSI	1/2"	20	3.46"	Plain	5/8" to 2 5/8"	0000000	00000
				40	ANSI	1/2"	21	3.62"	Plain	5/8" to 2 25/32"	0000000	00000
				40	ANSI	1/2"	22	3.78"	Plain	5/8" to 2 15/16"	0000000	00000
				40	ANSI	1/2"	23	3.94"	Plain	5/8" to 3 3/32"	0000000	00000
				40	ANSI	1/2"	24	4.1"	Plain	5/8" to 3 17/64"	0000000	00000
				40	ANSI	1/2"	25	4.26"	Plain	5/8" to 3 27/64"	0000000	00000
				40	ANSI	1/2"	30	5.06"	Plain	19/32" to 4 7/32"	0000000	00000


				40	ANSI	1/2"	35	5.86"	Plain	19/32" to 5 1/64"	0000000	00000
				40	ANSI	1/2"	40	6.65"	Plain	23/32" to 5 13/16"	0000000	00000
				40	ANSI	1/2"	45	7.45"	Plain	23/32" to 6 39/64"	0000000	00000
				40	ANSI	1/2"	60	9.84"	Plain	23/32" to 9"	0000000	00000
				50	ANSI	5/8"	12	2.71"	Plain	5/8" to 1 43/64"	0000000	00000
				50	ANSI	5/8"	13	2.91"	Plain	5/8" to 1 7/8"	0000000	00000
				50	ANSI	5/8"	14	3.11"	Plain	5/8" to 2 5/64"	0000000	00000
				50	ANSI	5/8"	15	3.32"	Plain	5/8" to 2 9/32"	0000000	00000
				50	ANSI	5/8"	16	3.52"	Plain	5/8" to 2 31/64"	0000000	00000
				50	ANSI	5/8"	17	3.72"	Plain	5/8" to 2 11/16"	0000000	00000


				50	ANSI	5/8"	18	3.92"	Plain	5/8" to 2 57/64"	0000000	00000
				50	ANSI	5/8"	19	4.12"	Plain	5/8" to 3 5/64"	0000000	00000
				50	ANSI	5/8"	20	4.32"	Plain	3/4" to 3 9/32"	0000000	00000
				50	ANSI	5/8"	21	4.52"	Plain	3/4" to 3 31/64"	0000000	00000
50				ANSI	5/8"	22	4.72"	Plain	3/4" to 3 11/16"	0000000	00000
50	ANSI			5/8"	23	4.92"	Plain	3/4" to 3 57/64"	0000000	00000
50	ANSI			5/8"	24	5.12"	Plain	23/32" to 4 5/64"	0000000	00000
50	ANSI			5/8"	25	5.32"	Plain	23/32" to 4 9/32"	0000000	00000
50	ANSI			5/8"	30	6.32"	Plain	23/32" to 5 9/32"	0000000	00000
50	ANSI	5/8"		35	7.32"	Plain	23/32" to 6 9/32"	0000000	00000
50	ANSI	5/8"	40	8.32"	Plain	23/32" to 7 9/32"	0000000	00000
50	ANSI	5/8"	45	9.31"	Plain	23/32" to 8 9/32"	0000000	00000
50	ANSI	5/8"	60	12.3"	Plain	15/16" to 11 17/64"	0000000	00000
60	ANSI	3/4"	12	3.25"	Plain	3/4" to 2 1/64"	0000000	00000
60	ANSI	3/4"	13	3.49"	Plain	3/4" to 2 1/4"	0000000	00000
60	ANSI	3/4"	14	3.74"	Plain	3/4" to 2 1/2"	0000000	00000
60	ANSI	3/4"	15	3.98"	Plain	3/4" to 2 3/4"	0000000	00000
60	ANSI	3/4"	16	4.22"	Plain	3/4" to 2 63/64"	0000000	00000
60	ANSI	3/4"	17	4.46"	Plain	3/4" to 3 7/32"	0000000	00000
60	ANSI	3/4"	18	4.7"	Plain	3/4" to 3 15/32"	0000000	00000
60	ANSI	3/4"	19	4.95"	Plain	3/4" to 3 45/64"	0000000	00000
60	ANSI	3/4"	20	5.19"	Plain	3/4" to 3 61/64"	0000000	00000
60	ANSI	3/4"	21	5.43"	Plain	3/4" to 4 3/16"	0000000	00000
60	ANSI	3/4"	22	5.67"	Plain	3/4" to 4 7/16"	0000000	00000
60	ANSI	3/4"	23	5.91"	Plain	3/4" to 4 43/64"	0000000	00000
60	ANSI	3/4"	24	6.15"	Plain	23/32" to 4 29/32"	0000000	00000
60	ANSI	3/4"	25	6.39"	Plain	23/32" to 5 5/32"	0000000	00000
60	ANSI	3/4"	30	7.59"	Plain	23/32" to 6 11/32"	0000000	00000
60	ANSI	3/4"	35	8.78"	Plain	15/16" to 7 35/64"	0000000	00000
60	ANSI	3/4"	40	9.98"	Plain	15/16" to 8 3/4"	0000000	00000
60	ANSI	3/4"	45	11.18"	Plain	15/16" to 9 15/16"	0000000	00000
60	ANSI	3/4"	60	14.76"	Plain	1 1/4" to 13 33/64"	0000000	000000
80	ANSI	1"	12	4.33"	Plain	15/16" to 2 45/64"	0000000	00000
80	ANSI	1"	13	4.66"	Plain	15/16" to 3 1/32"	0000000	00000
80	ANSI	1"	14	4.98"	Plain	15/16" to 3 11/32"	0000000	00000
80	ANSI	1"	15	5.3"	Plain	15/16" to 3 43/64"	0000000	00000
80	ANSI	1"	16	5.63"	Plain	15/16" to 4"	0000000	00000
80	ANSI	1"	17	5.95"	Plain	15/16" to 4"	0000000	00000
80	ANSI	1"	18	6.27"	Plain	15/16" to 4 41/64"	0000000	00000
80	ANSI	1"	19	6.59"	Plain	15/16" to 4 61/64"	0000000	00000
80	ANSI	1"	20	6.91"	Plain	15/16" to 5 9/32"	0000000	00000
80	ANSI	1"	21	7.24"	Plain	15/16" to 5 39/64"	0000000	00000
80	ANSI	1"	22	7.56"	Plain	15/16" to 5 59/64"	0000000	00000
80	ANSI	1"	23	7.88"	Plain	15/16" to 6 1/4"	0000000	00000
80	ANSI	1"	24	8.2"	Plain	15/16" to 6 9/16"	00000000	00000
80	ANSI	1"	25	8.52"	Plain	15/16" to 6 7/8"	00000000	00000
80	ANSI	1"	30	10.11"	Plain	1 3/16" to 8 31/64"	00000000	00000
80	ANSI	1"	35	11.71"	Plain	1 3/16" to 10 5/64"	00000000	000000
80	ANSI	1"	40	13.31"	Plain	1 3/16" to 11 43/64"	00000000	000000
80	ANSI	1"	45	14.9"	Plain	1 1/4" to 13 9/32"	00000000	000000
80	ANSI	1"	60	19.68"	Plain	1 1/4" to 18 1/16"	00000000	000000
06B	ISO	3/8"	15	51.05 mm	Plain	8 mm to 35 mm	00000000	00000
06B	ISO	3/8"	16	53.85 mm	Plain	10 mm to 39 mm	00000000	00000
06B	ISO	3/8"	17	56.9 mm	Plain	10 mm to 42 mm	00000000	00000
06B	ISO	3/8"	18	59.94 mm	Plain	10 mm to 45 mm	00000000	00000
06B	ISO	3/8"	20	66.04 mm	Plain	10 mm to 51 mm	00000000	00000
06B	ISO	3/8"	21	69.09 mm	Plain	10 mm to 54 mm	00000000	00000
06B	ISO	3/8"	22	69.69 mm	Plain	10 mm to 57 mm	00000000	00000
06B	ISO	3/8"	26	84.07 mm	Plain	10 mm to 69 mm	00000000	00000
06B	ISO	3/8"	28	90.17 mm	Plain	10 mm to 75 mm	00000000	00000
06B	ISO	3/8"	36	114.3 mm	Plain	12 mm to 100 mm	00000000	00000
06B	ISO	3/8"	40	126.49 mm	Plain	14 mm to 112 mm	00000000	00000
06B	ISO	3/8"	60	187.2 mm	Plain	18 mm to 172 mm	00000000	00000
08B	ISO	1/2"	13	59.94 mm	Plain	10 mm to 38 mm	00000000	00000
08B	ISO	1/2"	14	64.01 mm	Plain	10 mm to 43 mm	00000000	00000
08B	ISO	1/2"	15	67.82 mm	Plain	10 mm to 47 mm	00000000	00000
08B	ISO	1/2"	16	71.88 mm	Plain	10 mm to 51 mm	00000000	00000
08B	ISO	1/2"	17	75.95 mm	Plain	10 mm to 55 mm	00000000	00000
08B	ISO	1/2"	18	80.01 mm	Plain	10 mm to 59 mm	00000000	00000
08B	ISO	1/2"	20	88.14 mm	Plain	10 mm to 67 mm	00000000	00000
08B	ISO	1/2"	21	91.95 mm	Plain	12 mm to 71 mm	00000000	00000
08B	ISO	1/2"	22	96.01 mm	Plain	12 mm to 75 mm	00000000	00000
08B	ISO	1/2"	24	104.14 mm	Plain	12 mm to 83 mm	00000000	00000
08B	ISO	1/2"	25	108.2 mm	Plain	12 mm to 87 mm	00000000	00000
08B	ISO	1/2"	26	112.27 mm	Plain	16 mm to 92 mm	00000000	00000
08B	ISO	1/2"	27	116.33 mm	Plain	16 mm to 96 mm	00000000	00000
08B	ISO	1/2"	32	136.4 mm	Plain	15 mm to 116 mm	00000000	00000
08B	ISO	1/2"	36	152.65 mm	Plain	15 mm to 132 mm	00000000	00000
08B	ISO	1/2"	37	115.71 mm	Plain	15 mm to 136 mm	00000000	00000
08B	ISO	1/2"	39	121.77 mm	Plain	18 mm to 144 mm	00000000	00000

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"	1.73"	Steel	0000000	000000


				35	ANSI	3/8"	19	3/8"	2.47"	Steel	0000000	00000
				35	ANSI	3/8"	19	1/2"	2.47"	Steel	0000000	00000
				40	ANSI	1/2"	18	1/2"	3.14"	Steel	0000000	00000
				40	ANSI	1/2"	18	5/8"	3.14"	Steel	0000000	00000
				41	ANSI	1/2"	18	1/2"	3.14"	Steel	0000000	00000
				41	ANSI	1/2"	18	5/8"	3.14"	Steel	0000000	00000
				50	ANSI	5/8"	17	1/2"	3.72"	Steel	0000000	00000
				50	ANSI	5/8"	17	5/8"	3.72"	Steel	0000000	00000
				60	ANSI	3/4"	15	1/2"	3.98"	Steel	0000000	00000
				60	ANSI	3/4"	15	5/8"	3.98"	Steel	0000000	00000


				80	ANSI	1"	12	3/4"	4.33"	Steel	0000000	00000
				100	ANSI	1 1/4"	11	3/4"	5.01"	Steel	00000000	000000
				120	ANSI	1 1/2"	10	1"	5.52"	Steel	00000000	000000
				05B	ISO	8 mm	23	16 mm	62 mm	Steel	0000000	00000
				06B	ISO	3/8"	21	16 mm	68 mm	Steel	0000000	00000
				08B	ISO	1/2"	16	16 mm	69.5 mm	Steel	0000000	00000
				08B	ISO	1/2"	18	16 mm	78 mm	Steel	0000000	00000
				10B	ISO	5/8"	15	16 mm	93 mm	Steel	0000000	00000
				10B	ISO	5/8"	17	16 mm	93 mm	Steel	0000000	00000
				12B	ISO	3/4"	15	16 mm	100 mm	Steel	0000000	00000


				16B	ISO	1"	12	20 mm	109 mm	Steel	000000	00000




						Wear-Resistant Steel with Hardened Teeth

						25	ANSI	1/4"	20	3/8"	1.73"	Steel	00000000	00000


						35	ANSI	3/8"	19	3/8"	2.47"	Steel	00000000	00000
						35	ANSI	3/8"	19	1/2"	2.47"	Steel	000000	00000
						35	ANSI	3/8"	20	5/8"	2.59"	Steel	0000000	00000
						40	ANSI	1/2"	17	5/8"	2.98"	Steel	0000000	00000
						40	ANSI	1/2"	18	1/2"	3.14"	Steel	00000000	00000
						40	ANSI	1/2"	18	5/8"	3.14"	Steel	00000000	00000
						40	ANSI	1/2"	25	5/8"	4.26"	Steel	00000000	00000
						40	ANSI	1/2"	35	5/8"	5.86"	Steel	00000000	00000
						40	ANSI	1/2"	48	5/8"	7.93"	Steel	00000000	00000
						41	ANSI	1/2"	18	1/2"	3.14"	Steel	000000	00000


						41	ANSI	1/2"	18	5/8"	3.14"	Steel	000000	00000
						50	ANSI	5/8"	15	5/8"	3.32"	Steel	0000000	00000
						50	ANSI	5/8"	17	1/2"	3.72"	Steel	00000000	00000
						50	ANSI	5/8"	17	5/8"	3.72"	Steel	00000000	00000
						50	ANSI	5/8"	25	3/4"	5.32"	Steel	00000000	00000
						50	ANSI	5/8"	39	3/4"	8.12"	Steel	00000000	000000
60						ANSI	3/4"	12	5/8"	3.25"	Steel	00000000	00000
60	ANSI					3/4"	13	5/8"	3.49"	Steel	0000000	00000
60	ANSI					3/4"	15	5/8"	3.98"	Steel	00000000	00000
60	ANSI					3/4"	17	5/8"	4.46"	Steel	00000000	000000


80	ANSI	1"	12			3/4"	4.33"	Steel	000000	000000


Sleeve Bearing







						Wear-Resistant Steel with Hardened Teeth

						35	ANSI	3/8"	20	1/2"	2.59"	Bronze	0000000	00000


						40, 41	ANSI	1/2"	15	1/2"	2.65"	Bronze	0000000	00000
						50	ANSI	5/8"	15	1/2"	3.32"	Bronze	0000000	00000
						60	ANSI	3/4"	14	1/2"	3.74"	Bronze	0000000	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"	2.47"	Steel	000000	0000000


				35-2	ANSI	3/8"	19	5/8"	2.47"	Steel	000000	000000
				40-2	ANSI	1/2"	18	1/2"	3.14"	Steel	000000	000000
				40-2	ANSI	1/2"	18	5/8"	3.14"	Steel	000000	000000
				50-2	ANSI	5/8"	17	1/2"	3.72"	Steel	000000	000000
				50-2	ANSI	5/8"	17	5/8"	3.72"	Steel	000000	000000
				60-2	ANSI	3/4"	15	1/2"	3.98"	Steel	000000	000000
				60-2	ANSI	3/4"	15	5/8"	3.98"	Steel	000000	000000
				80-2	ANSI	1"	12	3/4"	4.33"	Steel	000000	000000

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	0000000	000000


		40	ANSI	1/2"	17	3/4"	3"	Steel	0000000	00000
		50	ANSI	5/8"	15	5/8"	3.34"	Steel	0000000	00000
		50	ANSI	5/8"	15	3/4"	3.34"	Steel	0000000	00000
		60	ANSI	3/4"	13	5/8"	3.5"	Steel	0000000	00000
		60	ANSI	3/4"	13	3/4"	3.5"	Steel	0000000	00000
		80	ANSI	1"	12	5/8"	4.4"	Steel	0000000	00000