Sprockets for 25mm Shaft Diameter | McMaster-Carr

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	System of Measurement System of Measurement

	For Shaft Diameter For Shaft Diameter	Show

	For Shaft Diameter For Shaft Diameter	Hide

1/32" to 11/32"

1/32" to 15/32"

1/32" to 17/32"

1/32" to 19/32"

1/32" to 21/32"

1/32" to 11/16"

1/32" to 13/16"

1/32" to 1 3/32"

5/8" to 1 5/16"

3/4" to 1 5/16"

7/8" to 1 5/16"

1 1/8" to 1 7/8"

1 1/8" to 2 1/8"

1 1/8" to 2 1/2"

	Number of Teeth Number of Teeth

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
36
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
68
70
72
76
80
84
90
95
96
112
114

	Roller Chain Trade Size Roller Chain Trade Size

	Pitch Pitch

	OD OD

	ID ID

	For Roller Chain Strand Type For Roller Chain Strand Type


Single	Double

	Bore Type Bore Type


Finished	Machinable

Round

	For Shaft Type For Shaft Type

	Round
	Keyed

	Overall Width Overall Width

	Roller Chain Standard Roller Chain Standard

	Material Material

4140 Alloy Steel

	For Maximum Shaft Diameter For Maximum Shaft Diameter

	Specifications Met Specifications Met

	Sprocket Type Sprocket Type

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

DFARS Specialty Metals
COTS-Exempt

	Hub Diameter Hub Diameter

	Shaft Mount Type Shaft Mount Type

	Bushing Type Bushing Type

Quick Disconnect

	Keyway Width Keyway Width

	Component Component

	Gear

	Fastener Tightening Torque Fastener Tightening Torque

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About Roller Chain and Sprockets

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Sprockets

Sprockets for Metric Roller Chain

Sprockets for Metric Roller Chain

Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain.

Flat Sprockets for Metric Roller Chain

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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.

Sprockets for Double-Strand Metric Roller Chain

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.

Idler Sprockets for Metric Roller Chain

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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.

Bushings for Chain and Belt Drives

Quick-Disconnect (QD) Bushings

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The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys.

Taper-Lock Bushings

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Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws.

Split-Tapered Bushings

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The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings.

Self-Centering Screw-Clamp Bushings

Self-Centering Screw-Clamp Bushings

A mounting flange prevents movement during tightening, so it's easy to center these bushings in your sprocket.

Quick-Grip Screw-Clamp Bushings

Quick-Grip Screw-Clamp Bushings

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed.

Flush-Mount Screw-Clamp Bushings

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting.

High-Power Metal Gears

High-Power Metal Gears

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For smooth, quiet operation at high speeds under heavy loads, helical gears have curved teeth that engage gradually and stay in contact longer than straight teeth.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)