15.88 mm Gears | McMaster-Carr

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	Number of Teeth Number of Teeth

	Roller Chain Trade Size Roller Chain Trade Size

10B

	System of Measurement System of Measurement

Metric

	For Shaft Diameter For Shaft Diameter

12mm

16 mm

19 mm

	For Maximum Shaft Diameter For Maximum Shaft Diameter

	Pitch Pitch	Show

15.88 mm

	Pitch Pitch	Hide

	Bore Type Bore Type

Machinable

Finished

Bushing

	OD OD

	ID ID

12 mm

16 mm

19 mm

	For Roller Chain Strand Type For Roller Chain Strand Type

	Single

	Hub Diameter Hub Diameter

	For Shaft Type For Shaft Type

	Round

	Specifications Met Specifications Met

ISO

DIN

	Material Material

Steel

	Roller Chain Standard Roller Chain Standard

ISO

	Overall Width Overall Width

18 mm

25mm

32 mm

	Sprocket Type Sprocket Type

Standard

Idler

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Bearing Type Bearing Type

	Ball

	Bearing Seal Type Bearing Seal Type

Double Sealed

	Bearing Material Bearing Material

Steel

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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 10B Roller Chain (15.88 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
8	12	16	51.17	25	22	Steel	DIN 8187, ISO 606	00000000	000000
10	12	22	61.06	25	32	Steel	DIN 8187, ISO 606	00000000	00000
11	12	25	66.03	25	37	Steel	DIN 8187, ISO 606	00000000	00000
12	12	32	71.02	25	43	Steel	DIN 8187, ISO 606	00000000	00000
13	12	33	76.02	25	48	Steel	DIN 8187, ISO 606	00000000	00000
14	12	36	81.03	25	53	Steel	DIN 8187, ISO 606	00000000	00000
15	12	38	86.04	25	57	Steel	DIN 8187, ISO 606	00000000	00000
17	12	47	96.08	25	67	Steel	DIN 8187, ISO 606	00000000	00000
18	12	48	101.1	25	73	Steel	DIN 8187, ISO 606	00000000	00000
19	16	51	106.13	25	76	Steel	DIN 8187, ISO 606	00000000	00000
20	16	51	111.16	25	76	Steel	DIN 8187, ISO 606	00000000	00000
21	16	51	114.81	25	76	Steel	DIN 8187, ISO 606	00000000	00000
24	16	51	131.31	32	76	Steel	DIN 8187, ISO 606	00000000	00000
28	19	51	151.47	32	76	Steel	DIN 8187, ISO 606	00000000	000000

Idler Sprockets for Metric Roller Chain

Keep constant tension on your drive with these sprockets that press against your metric ISO roller chain to take up slack and reduce wear and vibration. They rotate freely on built-in ball bearings, which are double sealed to keep dirt out, and are for use with roller chain tensioners. All come with a finished bore that fits directly onto your shaft—no need for machining. These sprockets meet ISO 606, which is an international standard for dimensions and materials.

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

						Bearing
Number of Teeth	For Shaft Dia., mm	OD, mm	Overall Wd., mm	Hub Dia., mm	Material	Type	Material	Specifications Met		Each
For ISO 10B Roller Chain (15.88 mm Pitch)
15	16	93	18	40	Steel	Ball	Steel	ISO 606	0000000	000000
17	16	93	18	40	Steel	Ball	Steel	ISO 606	0000000	00000

Taper-Lock Bushing-Bore Sprockets for Metric Roller Chain

While their teeth fit into metric ISO roller chain, these sprockets use taper-lock bushings to grip shafts. That means 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. These sprockets have an extended hub that makes them more stable and durable than flat sprockets. All 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 Single-Strand Roller Chain

For ISO 10B Roller Chain (15.88 mm Pitch)
Number of Teeth	For Bushing Style	OD, mm	Overall Wd., mm	Hub Dia., mm	Teeth Heat Treatment	Material	Specifications Met		Each
17	1610	94.49	25	70.64	Hardened	Steel	DIN 8187, ISO 606	00000000	000000
18	1610	99.57	25	70.64	Hardened	Steel	DIN 8187, ISO 606	00000000	00000
19	1610	104.65	25	76.2	Hardened	Steel	DIN 8187, ISO 606	00000000	00000
23	2012	124.97	32	90.47	Hardened	Steel	DIN 8187, ISO 606	00000000	000000