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

Width

Chain Standard

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

Yes

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

DFARS Specialty Metals

RoHS

Specifications Met

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	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