A-Plate Sprockets | McMaster-Carr

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Number of Teeth

Roller Chain Trade Number

06B

08B

System of Measurement

Pitch

Shaft Diameter

Overall Width

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Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

DFARS Specialty Metals

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Specifications Met

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121 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