29 Teeth Sprockets | McMaster-Carr

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	Roller Chain Trade Size Roller Chain Trade Size

06B

08B

	Number of Teeth Number of Teeth	Show

	Number of Teeth Number of Teeth	Hide

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
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37
38
39
40
42
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46
48
50
52
54
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56
60
62
64
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70
72
75
76
80
84
90
96
100
112
120
128
130

	System of Measurement System of Measurement

Inch

Metric

	Pitch Pitch

9.53 mm

12.70 mm

	For Shaft Diameter For Shaft Diameter

12mm

16mm

	Specifications Met Specifications Met

ISO

DIN

	Hub Diameter Hub Diameter

60mm

82 mm

	OD OD

2.86"

92 mm

123.8 mm

	ID ID

12mm

16mm

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

DFARS Specialty Metals
COTS-Exempt

	For Shaft Type For Shaft Type

	Round

	Bore Type Bore Type


Machinable	Plain

	Material Material

Steel

Iron

	Overall Width Overall Width

28 mm

30mm

	Roller Chain Standard Roller Chain Standard

ISO

DIN

	Sprocket Type Sprocket Type

Standard

	For Maximum Shaft Diameter For Maximum Shaft Diameter

38 mm

53 mm

	For Roller Chain Strand Type For Roller Chain Strand Type

	Single

	For Maximum Belt Width For Maximum Belt Width

50 mm

85 mm

	Teeth Shape Teeth Shape

	Curved

	Width Width

2 13/64"

3 11/32"

	Diameter Diameter

2.86"

	For Belt Trade Size For Belt Trade Size

H8M

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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 DIN, 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
29	12	38	92	28	60	Steel	DIN 8187, ISO 606	00000000	000000
For DIN, ISO 08B Roller Chain (12.7 mm Pitch)
29	16	53	123.8	30	82	Steel	DIN 8187, ISO 606	00000000	00000

High-Strength HTD Timing Belt Idler Pulleys

Keep high torque drive (HTD) timing belt systems running tightly with these idler pulleys. Made with built-in, free-spinning ball bearings, they're installed on shafts or belt tensioners (not included) to remove slack from timing belts. By maintaining tension on the belt, these pulleys reduce wear and vibration in 3D printing, machine tool drives, robotics, and other linear motion applications that require precise positioning.

When replacing an idler pulley, be sure the pulley matches your belt's trade size.

Toothed pulleys are shaped to mesh with the teeth on a timing belt, which reduces wear on the belt's teeth.

Iron pulleys are strong and wear resistant, with a black oxide coating that protects them from corrosion in dry environments.

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

Toothed

For 50 mm Max. Belt Wd.
OD	Number of Teeth	For Shaft Dia.	Dia.	Wd.	Shaft Mount Type	Bore Type	Fabrication	Material	Bearing Type		Each
2.86"	29	1"	2.86"	2 13/64"	Press Fit	Plain	Machined	Black-Oxide Iron	Needle Roller	0000000	000000
For 85 mm Max. Belt Wd.
2.86"	29	1"	2.86"	3 11/32"	Press Fit	Plain	Machined	Black-Oxide Iron	Needle Roller	0000000	00000

About Roller Chain and Sprockets

Sprockets for Metric Roller Chain

High-Strength HTD Timing Belt Idler Pulleys