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Roller Chain Trade Number
25
35
40
41
50
60
80
100
120
160
04B
05B
06B
08B
10B
81X
System of Measurement
Inch
Metric
Shaft Diameter
3/32"
1/8"
3/16"
1/4"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
0.85"
7/8"
1"
1
1/8"
1
3/16"
1
1/4"
1
3/8"
1
1/2"
1
7/8"
2
1/4"
2
3/4"
3
7/16"
3 mm
6 mm
8 mm
10 mm
11 mm
12 mm
20 mm
22 mm
Pitch
0.080"
0.1227"
0.1475"
0.2"
1/4"
3/8"
1/2"
5/8"
3/4"
1"
1
1/4"
1
1/2"
2"
2.609"
2.030 mm
5 mm
5.080 mm
6 mm
8 mm
9.53 mm
Shaft Type
Keyed
Round
ID
1/8"
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1"
1
1/8"
1
3/16"
1
1/4"
1
3/8"
1
1/2"
6 mm
8 mm
10 mm
12 mm
OD
0.42"
0.425"
0.46"
0.53"
7/8"
0.88"
0.92"
0.929"
0.938"
1.164"
1.38"
1.422"
1.84"
2.3"
2.76"
3.68"
4.6"
5.52"
6.37"
6.55"
7.36"
9.03"
10.8 mm
11 mm
21.7 mm
22 mm
24.21 mm
29.2 mm
34 mm
36.53 mm
47.4 mm
61.06 mm
Unit Price
Less than $25
$25 to $45
$45 to $75
$75 to $120
$120 or greater
Bore Type
Finished
Plain
Round
Material
18-8 Stainless Steel
Aluminum
Plastic
Steel
Shaft Mount Type
Press Fit
Set Screw
Hub Diameter
1/4"
3/8"
0.425"
0.437"
0.438"
1/2"
9/16"
0.813"
31/32"
1
1/4"
1
9/16"
1
15/16"
2"
2
9/16"
3
1/4"
3
3/4"
4
1/8"
5
1/4"
10 mm
10.8 mm
11 mm
13 mm
16 mm
17 mm
20 mm
22.22 mm
26 mm
32 mm
Overall Width
5/16"
11/32"
0.438"
31/64"
1/2"
0.563"
0.688"
3/4"
0.781"
0.812"
0.813"
7/8"
1"
1
1/8"
1
1/4"
1
5/8"
1
7/8"
2
1/4"
3
7/8"
10 mm
11.1 mm
12 mm
14.3 mm
17.5 mm
20.6 mm
22 mm
25 mm
28.57 mm
Keyway Width
3/32"
1/8"
3/16"
1/4"
5/16"
Component
Gear
Chain Standard
ANSI
ISO
Sprocket Type
Drive
Idler
Strand Type
Single
Chain Type
Roller
Keyway Depth
3/64"
1/16"
3/32"
1/8"
5/32"
Bearing Type
Ball
Export Control Classification Number (ECCN)
EAR99
RoHS
Compliant
Not Compliant
DFARS Specialty Metals
Exempt
REACH
Compliant
Not Compliant
Gear Pitch Diameter
21.2 mm
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