McMaster-Carr

These sprockets come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. All have hardened teeth for increased wear resistance and a long service life.

For technical drawings and 3-D models, click on a part number.

For ANSI 35-2 Roller Chain (3/8" Pitch)
Number of Teeth	For Shaft Dia.	For Max. Shaft Dia.	OD	Overall Wd.	Hub Dia.	Material		Each
12	1/2"	9/16"	1.63"	1 1/4"	63/64"	Steel	000000	000000
13	1/2"	11/16"	1.75"	1 1/4"	1 7/64"	Steel	000000	00000
14	1/2"	7/8"	1.87"	1 1/4"	1 1/4"	Steel	000000	00000
15	1/2"	15/16"	1.99"	1 1/4"	1 13/32"	Steel	000000	00000
16	1/2"	15/16"	2.11"	1 1/4"	1 15/32"	Steel	000000	00000
17	1/2"	1 1/16"	2.23"	1 1/4"	1 19/32"	Steel	000000	00000
18	1/2"	1 3/16"	2.35"	1 1/4"	1 23/32"	Steel	000000	00000
19	1/2"	1 5/16"	2.47"	1 1/4"	1 7/8"	Steel	000000	00000
20	3/4"	1 5/16"	2.59"	1 3/8"	1 15/16"	Steel	000000	00000
For ANSI 40-2 Roller Chain (1/2" Pitch)
11	1/2"	3/4"	2"	1 1/2"	1 7/16"	Steel	0000000	00000
12	1/2"	15/16"	2.17"	1 1/2"	1 9/16"	Steel	0000000	00000
13	1/2"	1"	2.33"	1 1/2"	1 1/2"	Steel	0000000	00000
14	1/2"	1 1/8"	2.49"	1 1/2"	1 11/16"	Steel	0000000	00000
15	1/2"	1 1/4"	2.65"	1 1/2"	1 13/16"	Steel	0000000	00000
16	5/8"	1 3/8"	2.81"	1 1/2"	2"	Steel	0000000	00000
17	5/8"	1 7/16"	2.98"	1 1/2"	2 1/8"	Steel	0000000	00000
18	5/8"	1 1/2"	3.14"	1 1/2"	2 5/16"	Steel	0000000	00000
19	5/8"	1 3/4"	3.3"	1 1/2"	2 1/2"	Steel	0000000	00000
20	5/8"	1 7/8"	3.46"	1 5/8"	2 5/8"	Steel	0000000	00000
For ANSI 50-2 Roller Chain (5/8" Pitch)
11	5/8"	15/16"	2.5"	1 3/4"	1 15/32"	Steel	0000000	00000
12	5/8"	1 1/8"	2.71"	1 3/4"	1 11/16"	Steel	0000000	00000
13	5/8"	1 5/16"	2.91"	1 3/4"	1 7/8"	Steel	0000000	00000
14	5/8"	1 3/8"	3.11"	1 3/4"	2 1/16"	Steel	0000000	00000
15	3/4"	1 1/2"	3.32"	1 3/4"	2 5/16"	Steel	0000000	00000
16	3/4"	1 3/4"	3.52"	1 3/4"	2 1/2"	Steel	0000000	00000
17	3/4"	1 7/8"	3.72"	1 3/4"	2 11/16"	Steel	0000000	00000
18	3/4"	1 15/16"	3.92"	1 3/4"	2 7/8"	Steel	0000000	00000
19	1"	2 1/8"	4.12"	1 3/4"	3 1/8"	Steel	0000000	00000
20	1"	2 1/4"	4.32"	1 3/4"	3 1/4"	Steel	0000000	00000
For ANSI 60-2 Roller Chain (3/4" Pitch)
11	1"	1 1/4"	3"	2 1/8"	1 13/16"	Steel	0000000	00000
12	1"	1 7/16"	3.25"	2 1/8"	2 1/8"	Steel	0000000	00000
13	1"	1 1/2"	3.49"	2 1/8"	2 1/4"	Steel	0000000	00000
14	1"	1 3/4"	3.74"	2 1/8"	2 1/2"	Steel	0000000	00000
15	1"	1 7/8"	3.98"	2 1/8"	2 13/16"	Steel	0000000	00000
16	1"	2"	4.22"	2 1/8"	3"	Steel	0000000	00000
17	1"	2 1/4"	4.46"	2 1/8"	3 1/4"	Steel	0000000	000000
18	1"	2 3/8"	4.7"	2 1/8"	3 1/2"	Steel	0000000	000000
19	1"	2 1/2"	4.95"	2 1/8"	3 11/16"	Steel	0000000	000000
20	1"	2 1/2"	5.19"	2 1/8"	3 3/4"	Steel	0000000	000000

Sprockets for Double-Strand Metric Roller Chain

The double row of teeth on these sprockets are designed to fit into metric ISO double-strand roller chain. They have an unfinished bore that’s machined to the shaft diameter size listed. Machine them to fit any shaft up to the maximum shaft diameter size. The extended hub makes these sprockets more stable and more durable than flat sprockets. They meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.

For technical drawings and 3-D models, click on a part number.

For ISO 06B Roller Chain (9.53 mm Pitch)
Number of Teeth	For Shaft Dia., mm	For Max. Shaft Dia., mm	OD, mm	Overall Wd., mm	Hub Dia., mm	Material	Specifications Met		Each
12	10	16	42.36	25	25	Steel	DIN 8187, ISO 606	00000000	000000
13	10	18	45.36	25	28	Steel	DIN 8187, ISO 606	00000000	00000
14	10	18	48.36	25	31	Steel	DIN 8187, ISO 606	00000000	00000
15	10	20	51.37	25	34	Steel	DIN 8187, ISO 606	00000000	00000
16	12	20	54.38	30	37	Steel	DIN 8187, ISO 606	00000000	00000
17	12	24	57.39	30	40	Steel	DIN 8187, ISO 606	00000000	00000
18	12	25	60.41	30	43	Steel	DIN 8187, ISO 606	00000000	00000
19	12	28	63.43	30	46	Steel	DIN 8187, ISO 606	00000000	00000
20	12	30	66.44	30	49	Steel	DIN 8187, ISO 606	00000000	00000
21	12	30	69.46	30	52	Steel	DIN 8187, ISO 606	0000000	00000
22	12	35	72.49	30	55	Steel	DIN 8187, ISO 606	00000000	00000
23	12	38	75.51	30	58	Steel	DIN 8187, ISO 606	00000000	00000
24	12	39	78.53	30	61	Steel	DIN 8187, ISO 606	00000000	00000
25	12	40	81.55	30	64	Steel	DIN 8187, ISO 606	00000000	00000
26	12	42	84.58	30	67	Steel	DIN 8187, ISO 606	00000000	00000
27	12	45	87.6	30	70	Steel	DIN 8187, ISO 606	00000000	00000
28	12	48	90.63	30	73	Steel	DIN 8187, ISO 606	00000000	00000
29	12	50	93.65	30	76	Steel	DIN 8187, ISO 606	00000000	00000
30	12	52	96.68	30	80	Steel	DIN 8187, ISO 606	00000000	00000
36	16	60	114.84	30	90	Steel	DIN 8187, ISO 606	0000000	00000
38	16	60	120.9	30	90	Steel	DIN 8187, ISO 606	00000000	000000
42	19	60	133.02	35	90	Steel	DIN 8187, ISO 606	00000000	000000
45	19	60	142.1	35	90	Steel	DIN 8187, ISO 606	00000000	000000
48	19	60	151.19	35	90	Steel	DIN 8187, ISO 606	00000000	000000
52	19	60	163.31	35	90	Steel	DIN 8187, ISO 606	00000000	000000
57	19	60	178.46	35	90	Steel	DIN 8187, ISO 606	00000000	000000
68	19	60	211.79	35	90	Steel	DIN 8187, ISO 606	00000000	000000
72	19	60	223.92	35	90	Steel	DIN 8187, ISO 606	00000000	000000
76	19	60	230.05	38	90	Steel	DIN 8187, ISO 606	00000000	000000
84	19	60	260.3	38	90	Steel	DIN 8187, ISO 606	0000000	000000
95	25	62	293.34	38	95	Steel	DIN 8187, ISO 606	00000000	000000
96	25	62	296.67	38	95	Steel	DIN 8187, ISO 606	00000000	000000
114	25	62	351.24	38	95	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 08B Roller Chain (12.7 mm Pitch)
10	10	18	48.46	32	26	Steel	DIN 8187, ISO 606	00000000	00000
11	11	21	52.44	35	30	Steel	DIN 8187, ISO 606	00000000	00000
12	12	23	56.44	35	34	Steel	DIN 8187, ISO 606	00000000	00000
13	12	25	60.43	35	38	Steel	DIN 8187, ISO 606	00000000	00000
14	12	28	64.44	35	42	Steel	DIN 8187, ISO 606	00000000	00000
15	12	30	68.45	35	46	Steel	DIN 8187, ISO 606	00000000	00000
16	14	33	72.46	35	50	Steel	DIN 8187, ISO 606	0000000	00000
17	14	36	76.48	35	54	Steel	DIN 8187, ISO 606	00000000	00000
18	14	38	80.5	35	58	Steel	DIN 8187, ISO 606	00000000	00000
19	14	40	84.53	35	62	Steel	DIN 8187, ISO 606	00000000	00000
20	14	40	88.55	35	66	Steel	DIN 8187, ISO 606	00000000	00000
21	16	45	92.58	40	70	Steel	DIN 8187, ISO 606	00000000	000000
22	16	45	96.61	40	70	Steel	DIN 8187, ISO 606	00000000	000000
23	16	45	100.63	40	70	Steel	DIN 8187, ISO 606	00000000	000000
24	16	50	104.66	40	75	Steel	DIN 8187, ISO 606	00000000	000000
25	16	52	108.7	40	80	Steel	DIN 8187, ISO 606	00000000	000000
26	20	56	112.73	40	85	Steel	DIN 8187, ISO 606	0000000	000000
27	20	56	116.76	40	85	Steel	DIN 8187, ISO 606	00000000	000000
28	20	60	120.8	40	90	Steel	DIN 8187, ISO 606	00000000	000000
29	20	62	124.83	40	95	Steel	DIN 8187, ISO 606	00000000	000000
30	20	64	128.86	40	100	Steel	DIN 8187, ISO 606	00000000	000000
32	20	64	136.94	40	100	Steel	DIN 8187, ISO 606	00000000	000000
35	20	64	149.05	40	100	Steel	DIN 8187, ISO 606	00000000	000000
36	20	73	153.08	40	110	Steel	DIN 8187, ISO 606	00000000	000000
38	20	73	161.16	45	110	Steel	DIN 8187, ISO 606	00000000	000000
40	20	73	169.23	45	110	Steel	DIN 8187, ISO 606	00000000	000000
42	20	73	177.31	45	110	Steel	DIN 8187, ISO 606	0000000	000000
45	20	73	189.43	45	110	Steel	DIN 8187, ISO 606	00000000	000000
48	20	73	201.55	45	110	Steel	DIN 8187, ISO 606	00000000	000000
54	25	73	225.79	45	110	Steel	DIN 8187, ISO 606	00000000	000000
57	25	73	237.91	45	110	Steel	DIN 8187, ISO 606	00000000	000000
68	25	73	282.36	45	110	Steel	DIN 8187, ISO 606	00000000	000000
72	25	73	298.52	45	110	Steel	DIN 8187, ISO 606	00000000	000000
76	30	80	314.69	45	120	Steel	DIN 8187, ISO 606	00000000	000000
84	30	80	347.01	45	120	Steel	DIN 8187, ISO 606	00000000	000000
95	30	80	391.48	45	120	Steel	DIN 8187, ISO 606	00000000	000000
96	30	80	395.52	45	120	Steel	DIN 8187, ISO 606	0000000	000000
114	30	80	468.27	45	120	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 10B Roller Chain (15.88 mm Pitch)
11	14	24	66.03	40	37	Steel	DIN 8187, ISO 606	00000000	000000
12	14	28	71.02	40	43	Steel	DIN 8187, ISO 606	00000000	000000
13	14	33	76.02	40	48	Steel	DIN 8187, ISO 606	00000000	000000
14	14	35	81.03	40	53	Steel	DIN 8187, ISO 606	00000000	000000
15	14	38	86.04	40	58	Steel	DIN 8187, ISO 606	00000000	000000
16	16	40	91.06	45	63	Steel	DIN 8187, ISO 606	00000000	000000
17	16	45	96.08	45	68	Steel	DIN 8187, ISO 606	00000000	000000
18	16	48	101.1	45	73	Steel	DIN 8187, ISO 606	00000000	000000
19	16	52	106.13	45	79	Steel	DIN 8187, ISO 606	0000000	000000
20	16	56	111.16	45	84	Steel	DIN 8187, ISO 606	00000000	000000
21	16	56	116.2	45	85	Steel	DIN 8187, ISO 606	00000000	000000
22	16	60	121.23	45	90	Steel	DIN 8187, ISO 606	00000000	000000
23	16	62	126.27	45	95	Steel	DIN 8187, ISO 606	00000000	000000
24	16	64	131.31	45	100	Steel	DIN 8187, ISO 606	00000000	000000
25	16	68	136.35	45	105	Steel	DIN 8187, ISO 606	00000000	000000
26	20	73	141.39	45	110	Steel	DIN 8187, ISO 606	00000000	000000
27	20	73	146.43	45	110	Steel	DIN 8187, ISO 606	00000000	000000
28	20	76	151.47	45	115	Steel	DIN 8187, ISO 606	00000000	000000
29	20	76	156.51	45	115	Steel	DIN 8187, ISO 606	0000000	000000
30	20	80	161.56	45	120	Steel	DIN 8187, ISO 606	00000000	000000
32	20	80	171.65	45	120	Steel	DIN 8187, ISO 606	00000000	000000
35	20	80	186.78	45	120	Steel	DIN 8187, ISO 606	00000000	000000
36	20	80	191.83	45	120	Steel	DIN 8187, ISO 606	00000000	000000
38	20	80	201.92	50	120	Steel	DIN 8187, ISO 606	00000000	000000
40	30	80	212.02	50	120	Steel	DIN 8187, ISO 606	00000000	000000
45	30	80	237.26	50	120	Steel	DIN 8187, ISO 606	00000000	000000
48	30	80	252.41	60	120	Steel	DIN 8187, ISO 606	00000000	000000
57	32	85	297.86	60	130	Steel	DIN 8187, ISO 606	00000000	000000
70	32	85	363.52	60	130	Steel	DIN 8187, ISO 606	000000	000000
76	32	85	393.83	60	130	Steel	DIN 8187, ISO 606	00000000	000000
80	32	85	414.04	60	130	Steel	DIN 8187, ISO 606	00000000	000000
95	32	85	489.82	60	130	Steel	DIN 8187, ISO 606	00000000	000000
114	32	85	585.82	60	130	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 12B Roller Chain (19.05 mm Pitch)
11	16	32	79.37	50	47	Steel	DIN 8187, ISO 606	00000000	000000
12	16	36	85.35	50	53	Steel	DIN 8187, ISO 606	00000000	000000
13	16	38	91.35	50	59	Steel	DIN 8187, ISO 606	00000000	000000
14	16	42	97.36	50	65	Steel	DIN 8187, ISO 606	00000000	000000
15	16	45	103.37	50	71	Steel	DIN 8187, ISO 606	00000000	000000
16	20	51	109.4	50	77	Steel	DIN 8187, ISO 606	0000000	000000
17	20	54	115.42	50	83	Steel	DIN 8187, ISO 606	00000000	000000
18	20	60	121.45	50	89	Steel	DIN 8187, ISO 606	00000000	000000
19	20	62	127.49	50	95	Steel	DIN 8187, ISO 606	00000000	000000
20	20	64	133.52	50	100	Steel	DIN 8187, ISO 606	00000000	000000
21	20	64	139.56	50	100	Steel	DIN 8187, ISO 606	00000000	000000
22	20	64	145.61	50	100	Steel	DIN 8187, ISO 606	00000000	000000
23	20	73	151.65	50	110	Steel	DIN 8187, ISO 606	00000000	000000
24	20	73	157.7	50	110	Steel	DIN 8187, ISO 606	00000000	000000
25	20	80	163.74	50	120	Steel	DIN 8187, ISO 606	00000000	000000
26	20	80	169.79	50	120	Steel	DIN 8187, ISO 606	0000000	000000
27	20	80	175.84	50	120	Steel	DIN 8187, ISO 606	00000000	000000
28	20	80	181.89	50	120	Steel	DIN 8187, ISO 606	00000000	000000
29	20	80	187.94	50	120	Steel	DIN 8187, ISO 606	00000000	000000
30	20	80	193	50	120	Steel	DIN 8187, ISO 606	00000000	000000
32	20	85	206.1	50	130	Steel	DIN 8187, ISO 606	00000000	000000
35	20	85	224.27	50	130	Steel	DIN 8187, ISO 606	00000000	000000
36	25	85	230.32	50	130	Steel	DIN 8187, ISO 606	00000000	000000
38	25	85	242.44	50	130	Steel	DIN 8187, ISO 606	00000000	000000
40	25	85	254.55	50	130	Steel	DIN 8187, ISO 606	00000000	000000
45	25	85	284.84	50	130	Steel	DIN 8187, ISO 606	0000000	000000
48	25	85	303.02	50	130	Steel	DIN 8187, ISO 606	00000000	000000
57	32	85	357.56	65	130	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 16B Roller Chain (25.4 mm Pitch)
11	20	42	106.03	70	63	Steel	DIN 8187, ISO 606	00000000	000000
12	20	45	114.01	70	72	Steel	DIN 8187, ISO 606	00000000	000000
13	20	52	122.01	70	80	Steel	DIN 8187, ISO 606	00000000	000000
14	20	53	130.02	70	88	Steel	DIN 8187, ISO 606	00000000	000000
15	20	62	138.04	70	96	Steel	DIN 8187, ISO 606	00000000	000000
16	20	66	146.07	70	104	Steel	DIN 8187, ISO 606	00000000	000000
17	20	74	154.11	70	112	Steel	DIN 8187, ISO 606	00000000	000000
18	20	80	162.15	70	120	Steel	DIN 8187, ISO 606	0000000	000000
19	20	84	170.19	70	128	Steel	DIN 8187, ISO 606	00000000	000000
20	20	85	178.24	70	130	Steel	DIN 8187, ISO 606	00000000	000000
21	25	85	186.3	70	130	Steel	DIN 8187, ISO 606	00000000	000000
22	25	85	194.35	70	130	Steel	DIN 8187, ISO 606	00000000	000000
23	25	85	202.41	70	130	Steel	DIN 8187, ISO 606	00000000	000000
24	25	85	210.47	70	130	Steel	DIN 8187, ISO 606	00000000	000000
25	25	85	218.54	70	130	Steel	DIN 8187, ISO 606	00000000	000000
26	25	85	226.6	70	130	Steel	DIN 8187, ISO 606	00000000	000000
27	25	85	234.67	70	130	Steel	DIN 8187, ISO 606	00000000	000000
28	25	85	242.73	70	130	Steel	DIN 8187, ISO 606	0000000	000000
29	25	85	250.8	70	130	Steel	DIN 8187, ISO 606	00000000	000000
30	25	95	258.87	75	145	Steel	DIN 8187, ISO 606	00000000	000000
32	32	95	275.01	75	145	Steel	DIN 8187, ISO 606	00000000	000000
35	32	95	299.23	75	145	Steel	DIN 8187, ISO 606	00000000	000000
36	32	95	307.31	80	145	Steel	DIN 8187, ISO 606	00000000	000000
38	32	95	323.46	80	145	Steel	DIN 8187, ISO 606	00000000	000000
42	40	95	355.77	80	145	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 20B Roller Chain (31.75 mm Pitch)
10	20	45	123.38	75	69	Steel	DIN 8187, ISO 606	00000000	000000
11	20	52	133.33	80	79	Steel	DIN 8187, ISO 606	00000000	000000
12	20	60	143.31	80	90	Steel	DIN 8187, ISO 606	0000000	000000
13	20	64	153.31	80	100	Steel	DIN 8187, ISO 606	00000000	000000
14	20	73	163.32	80	110	Steel	DIN 8187, ISO 606	00000000	000000
15	20	80	173.35	80	120	Steel	DIN 8187, ISO 606	00000000	000000
16	25	80	183.38	80	120	Steel	DIN 8187, ISO 606	00000000	000000
17	25	80	193.43	80	120	Steel	DIN 8187, ISO 606	00000000	000000
18	25	80	203.48	80	120	Steel	DIN 8187, ISO 606	00000000	000000
19	25	80	213.54	80	120	Steel	DIN 8187, ISO 606	00000000	000000
20	25	80	223.6	80	120	Steel	DIN 8187, ISO 606	00000000	000000
21	25	92	233.66	80	140	Steel	DIN 8187, ISO 606	00000000	000000
22	25	92	243.73	80	140	Steel	DIN 8187, ISO 606	0000000	000000
23	25	92	253.81	80	140	Steel	DIN 8187, ISO 606	00000000	000000
24	32	96	263.88	80	145	Steel	DIN 8187, ISO 606	00000000	000000
25	32	96	273.96	80	145	Steel	DIN 8187, ISO 606	00000000	000000
26	32	96	284.04	80	145	Steel	DIN 8187, ISO 606	00000000	000000
27	32	96	294.13	80	145	Steel	DIN 8187, ISO 606	00000000	000000
28	32	96	304.21	80	145	Steel	DIN 8187, ISO 606	00000000	000000
30	32	96	324.38	80	145	Steel	DIN 8187, ISO 606	00000000	000000
32	32	96	344.56	80	145	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 24B Roller Chain (38.1 mm Pitch)
11	32	60	157.46	100	90	Steel	DIN 8187, ISO 606	00000000	000000
12	32	67	169.43	100	102	Steel	DIN 8187, ISO 606	0000000	000000
13	32	76	181.43	100	114	Steel	DIN 8187, ISO 606	00000000	000000
14	32	84	193.45	100	128	Steel	DIN 8187, ISO 606	00000000	000000
15	32	93	205.48	100	140	Steel	DIN 8187, ISO 606	00000000	000000
16	32	100	217.52	100	150	Steel	DIN 8187, ISO 606	00000000	000000
17	40	100	229.57	100	150	Steel	DIN 8187, ISO 606	00000000	000000
18	40	108	241.63	100	160	Steel	DIN 8187, ISO 606	00000000	000000
19	40	108	253.7	100	160	Steel	DIN 8187, ISO 606	00000000	000000
20	40	108	256.78	100	160	Steel	DIN 8187, ISO 606	00000000	000000
21	40	108	277.86	100	160	Steel	DIN 8187, ISO 606	00000000	000000
22	40	108	289.94	102	160	Steel	DIN 8187, ISO 606	0000000	000000
23	40	108	302.03	102	160	Steel	DIN 8187, ISO 606	00000000	000000
24	40	108	314.12	102	160	Steel	DIN 8187, ISO 606	00000000	000000
25	40	108	326.22	102	160	Steel	DIN 8187, ISO 606	00000000	000000
26	40	108	338.31	102	160	Steel	DIN 8187, ISO 606	00000000	000000
27	40	108	350.41	102	160	Steel	DIN 8187, ISO 606	00000000	00000000
28	40	108	362.51	102	160	Steel	DIN 8187, ISO 606	00000000	00000000
29	40	108	374.61	102	160	Steel	DIN 8187, ISO 606	00000000	00000000
30	40	108	386.72	102	160	Steel	DIN 8187, ISO 606	00000000	00000000
32	40	108	410.93	102	160	Steel	DIN 8187, ISO 606	00000000	00000000
For ISO 28B Roller Chain (44.45 mm Pitch)
11	40	73	185.4	120	112	Steel	DIN 8187, ISO 606	000000	000000
12	40	84	199.36	120	125	Steel	DIN 8187, ISO 606	00000000	000000
13	40	84	213.36	120	130	Steel	DIN 8187, ISO 606	00000000	000000
14	40	87	227.38	120	135	Steel	DIN 8187, ISO 606	00000000	000000
15	40	96	241.42	120	145	Steel	DIN 8187, ISO 606	00000000	000000
16	40	108	255.47	120	160	Steel	DIN 8187, ISO 606	00000000	000000
17	40	114	269.53	120	178	Steel	DIN 8187, ISO 606	00000000	000000
18	40	114	283.6	120	178	Steel	DIN 8187, ISO 606	00000000	000000
19	40	133	297.68	120	178	Steel	DIN 8187, ISO 606	00000000	000000
20	40	133	311.77	120	178	Steel	DIN 8187, ISO 606	00000000	000000
21	40	133	325.86	120	178	Steel	DIN 8187, ISO 606	0000000	000000
22	40	133	339.96	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
23	40	133	354.06	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
24	40	133	368.17	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
25	40	133	382.28	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
26	40	133	396.39	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
28	40	133	424.62	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
30	40	133	452.87	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
32	40	133	481.12	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
For ISO 32B Roller Chain (50.8 mm Pitch)
11	40	80	214.6	120	125	Steel	DIN 8187, ISO 606	00000000	000000
12	40	89	230.57	120	133	Steel	DIN 8187, ISO 606	0000000	000000
13	40	96	246.56	120	145	Steel	DIN 8187, ISO 606	00000000	000000
14	40	103	262.58	120	155	Steel	DIN 8187, ISO 606	00000000	000000
15	40	106	278.63	120	160	Steel	DIN 8187, ISO 606	00000000	000000
16	40	120	294.68	120	178	Steel	DIN 8187, ISO 606	00000000	000000
17	40	120	310.75	120	178	Steel	DIN 8187, ISO 606	00000000	000000
18	40	120	326.84	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
19	40	120	342.93	120	178	Steel	DIN 8187, ISO 606	00000000	00000000
20	40	130	359.03	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
21	40	130	375.13	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
22	40	130	391.25	120	191	Steel	DIN 8187, ISO 606	0000000	00000000
23	40	130	407.36	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
24	40	130	423.48	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
25	40	130	439.61	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
26	40	130	455.74	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
27	40	130	471.87	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
28	40	130	488.01	120	191	Steel	DIN 8187, ISO 606	00000000	00000000
30	40	130	520.28	120	191	Steel	DIN 8187, ISO 606	00000000	00000000

Idler Sprockets for Double-Strand ANSI Roller Chain

Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.

For technical drawings and 3-D models, click on a part number.

					Bearing
Number of Teeth	For Shaft Dia.	OD	Overall Wd.	Material	Type	Material		Each
For ANSI 35-2 Roller Chain (3/8" Pitch)
19	1/2"	2.47"	9/16"	Steel	Ball	Steel	000000	000000
19	5/8"	2.47"	9/16"	Steel	Ball	Steel	000000	00000
For ANSI 40-2 Roller Chain (1/2" Pitch)
18	1/2"	3.14"	27/32"	Steel	Ball	Steel	000000	000000
18	5/8"	3.14"	27/32"	Steel	Ball	Steel	000000	000000
For ANSI 50-2 Roller Chain (5/8" Pitch)
17	1/2"	3.72"	1 3/64"	Steel	Ball	Steel	000000	000000
17	5/8"	3.72"	1 3/64"	Steel	Ball	Steel	000000	000000
For ANSI 60-2 Roller Chain (3/4" Pitch)
15	1/2"	3.98"	1 11/32"	Steel	Ball	Steel	000000	000000
15	5/8"	3.98"	1 11/32"	Steel	Ball	Steel	000000	000000
For ANSI 80-2 Roller Chain (1" Pitch)
12	3/4"	4.33"	1 23/32"	Steel	Ball	Steel	000000	000000

Flat Taper-Lock Bushing-Bore Sprockets
for Double-Strand Metric Roller Chain

With a slim profile and a double row of teeth, these sprockets allow your metric ISO double-strand roller chain to fit into tight spaces. They’re often called A-plate sprockets. To grip shafts, they use taper-lock bushings, so you can switch to a different diameter shaft by changing the bushing instead of machining the sprocket. Bushings mount flush inside these sprockets; secure them in place by tightening the set screws included with the bushings. All of these sprockets meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.

For technical drawings and 3-D models, click on a part number.

For ISO 08B-2 Roller Chain (12.7 mm Pitch)
Number of Teeth	For Bushing Style	OD, mm	Overall Wd., mm	Material	Specifications Met		Each
15	1008	67.82	22	Steel	DIN 8187, ISO 606	00000000	000000
16	1008	71.88	22	Steel	DIN 8187, ISO 606	00000000	00000
17	1008	75.95	22	Steel	DIN 8187, ISO 606	00000000	00000
For ISO 10B-2 Roller Chain (15.88 mm Pitch)
14	1008	78.99	22	Steel	DIN 8187, ISO 606	00000000	000000
15	1210	84.33	25	Steel	DIN 8187, ISO 606	00000000	000000
16	1210	89.41	25	Steel	DIN 8187, ISO 606	00000000	000000
17	1610	94.49	25	Steel	DIN 8187, ISO 606	00000000	000000
18	1610	99.57	25	Steel	DIN 8187, ISO 606	00000000	000000
19	1610	104.65	25	Steel	DIN 8187, ISO 606	00000000	000000
For ISO 16B-2 Roller Chain (25.4 mm Pitch)
13	1615	118.36	38	Steel	DIN 8187, ISO 606	00000000	000000
14	2012	126.49	32	Steel	DIN 8187, ISO 606	00000000	000000
15	2012	134.62	32	Steel	DIN 8187, ISO 606	00000000	000000
16	2012	143	32	Steel	DIN 8187, ISO 606	00000000	000000
17	2517	151.13	44	Steel	DIN 8187, ISO 606	00000000	000000
18	2517	159.26	44	Steel	DIN 8187, ISO 606	00000000	000000

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About Roller Chain and Sprockets

Sprockets for Double-Strand ANSI Roller Chain

Sprockets for Double-Strand Metric Roller Chain

Idler Sprockets for Double-Strand ANSI Roller Chain

Flat Taper-Lock Bushing-Bore Sprocketsfor Double-Strand Metric Roller Chain

Flat Taper-Lock Bushing-Bore Sprockets
for Double-Strand Metric Roller Chain