8mm ID Sprockets | McMaster-Carr

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35 Products

About Roller Chain and Sprockets

Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.

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

For ISO 04B Roller Chain (6 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
13	8	11	27.3	10	18	Steel	DIN 8187, ISO 606	0000000	000000
16	8	12	33.2	13	20	Steel	DIN 8187, ISO 606	0000000	00000
17	8	12	35.1	13	20	Steel	DIN 8187, ISO 606	0000000	00000
18	8	12	37	13	20	Steel	DIN 8187, ISO 606	0000000	00000
19	8	12	38.9	13	20	Steel	DIN 8187, ISO 606	0000000	00000
20	8	12	40.8	13	20	Steel	DIN 8187, ISO 606	0000000	00000
21	8	15	42.7	13	20	Steel	DIN 8187, ISO 606	0000000	00000
22	8	15	44.6	13	25	Steel	DIN 8187, ISO 606	0000000	00000
24	8	12	48.3	13	25	Steel	DIN 8187, ISO 606	0000000	00000
25	8	15	50.3	13	25	Steel	DIN 8187, ISO 606	0000000	00000
30	8	19	59.9	15	30	Steel	DIN 8187, ISO 606	0000000	00000
For ISO 05B Roller Chain (8 mm Pitch)
10	8	11	29.2	12	17	Steel	DIN 8187, ISO 606	0000000	00000
11	8	11	31.7	13	18	Steel	DIN 8187, ISO 606	0000000	00000
12	8	12	33.5	13	20	Steel	DIN 8187, ISO 606	0000000	00000
13	8	20	36.7	13	23	Steel	DIN 8187, ISO 606	0000000	00000
14	8	15	39.9	13	25	Steel	DIN 8187, ISO 606	0000000	00000
15	8	18	42	13	28	Steel	DIN 8187, ISO 606	0000000	00000
16	8	19	45	14	30	Steel	DIN 8187, ISO 606	0000000	00000
17	8	20	47.6	14	30	Steel	DIN 8187, ISO 606	0000000	00000
18	8	22	50	14	30	Steel	DIN 8187, ISO 606	0000000	00000
19	8	24	52.5	14	30	Steel	DIN 8187, ISO 606	0000000	00000
20	8	25	55	14	30	Steel	DIN 8187, ISO 606	0000000	00000
21	8	25	57.5	14	35	Steel	DIN 8187, ISO 606	0000000	00000
22	8	25	60	14	35	Steel	DIN 8187, ISO 606	0000000	00000
23	8	17	62	14	35	Steel	DIN 8187, ISO 606	00000000	00000
24	8	17	64.6	14	35	Steel	DIN 8187, ISO 606	00000000	00000
25	8	25	67.5	14	35	Steel	DIN 8187, ISO 606	0000000	00000
For ISO 06B Roller Chain (9.53 mm Pitch)
8	8	9	28	22	13	Steel	DIN 8187, ISO 606	0000000	00000
9	8	11	31	22	16	Steel	DIN 8187, ISO 606	0000000	00000
10	8	12	34	22	20	Steel	DIN 8187, ISO 606	0000000	00000
11	8	14	37	25	23	Steel	DIN 8187, ISO 606	0000000	00000
12	8	16	41.91	25	26	Steel	DIN 8187, ISO 606	000000	00000

Flat Sprockets for Metric Roller Chain

With metric teeth and slim profile, these sprockets allow your ISO roller chain to reach narrow spaces. They're commonly referred to as A-plate sprockets. Machine the unfinished bore to fit your shaft—sprockets come machined to the shaft diameter listed and are machinable up to the maximum shaft diameter size. Sprockets meet DIN 8187 and ISO 606, international standards for sprockets and roller chains.

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

For ISO 06B Roller Chain (9.525 mm Pitch)
Number of Teeth	For Shaft Dia., mm	For Max. Shaft Dia., mm	OD, mm	Overall Wd., mm	Material	Specifications Met		Each
15	8	35	51.05	6	Steel	DIN 8187, ISO 606	00000000	000000

Hex Flanged Eccentric Bushings

Often used with V-groove wheels or track roller carriages, these off-center bushings create precise mounting clearance. As you turn the bushing’s hex flange with a wrench, it adjusts the distance between the V-groove wheel or carriage and the rail. Tighten the axle bolt in place once you’ve adjusted them. Made of 303 stainless steel, these bushings have very good corrosion resistance.

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

For Hole Diameter	Overall Width	Flange Height	Hex Size	Material		Each
12mm	25mm	9mm	19mm	303 Stainless Steel	00000000	000000

Quick-Grip Screw-Clamp Bushings

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.

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

Steel
For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.		Each
8mm	20mm	22mm	360	0000000	000000