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System of Measurement
Metric
OD
42 mm
44 mm
44.43 mm
47 mm
50 mm
52 mm
53.3 mm
57 mm
57.5 mm
60 mm
61.7 mm
62 mm
64.6 mm
67.5 mm
83 mm
Number of Teeth
20
21
22
23
24
25
30
40
42
45
48
50
55
60
80
Shaft Diameter
8 mm
10 mm
12 mm
17 mm
25 mm
Roller Chain Trade Number
05B
Bore Type
Keyed
Plain
Round
Component
Gear
Material
303 Stainless Steel
Cast Iron
Nylon
Steel
Pitch
8 mm
Gear Module
1
2
2.5
ID
8 mm
Hub Diameter
Hide
0.18"
0.188"
0.19"
0.22"
15/64"
1/4"
0.28"
0.281"
9/32"
0.31"
0.312"
0.313"
0.328"
21/64"
0.34"
3/8"
0.38"
25/64"
0.4"
0.406"
0.425"
0.437"
7/16"
0.438"
0.442"
0.45"
0.46"
0.469"
0.47"
0.48"
0.494"
1/2"
0.52"
0.53"
0.531"
17/32"
0.54"
0.546"
0.547"
0.555"
0.56"
9/16"
0.563"
0.58"
0.59"
0.6"
0.603"
0.609"
0.62"
5/8"
0.63"
0.656"
21/32"
0.672"
0.676"
0.685"
11/16"
0.688"
0.71"
23/32"
0.719"
0.72"
0.734"
0.74"
3/4"
0.754"
0.78"
0.79"
0.806"
0.81"
0.812"
13/16"
0.813"
0.84"
27/32"
0.844"
0.853"
0.859"
0.86"
7/8"
57/64"
0.906"
29/32"
0.92"
0.937"
15/16"
0.938"
31/32"
0.969"
0.97"
0.984"
63/64"
0.99"
1"
1
1/32"
1.062"
1
1/16"
1.063"
1.109"
1
7/64"
1.12"
1
1/8"
1
3/16"
1.188"
1.19"
1.2"
1.21"
1
7/32"
1.219"
1.22"
1.222"
1
1/4"
1
9/32"
1.312"
1.313"
1.34"
1
11/32"
1.344"
1.37"
1
3/8"
1.391"
1.4"
1.406"
1
13/32"
1.437"
1
7/16"
1.438"
1.439"
1.44"
1
15/32"
1.47"
1
1/2"
1.531"
1.56"
1
9/16"
1.563"
1
19/32"
1.62"
1.625"
1.641"
1.65"
1.687"
1
11/16"
1.688"
1.69"
1.7"
1
23/32"
1.719"
1.72"
1
3/4"
1
25/32"
1.8"
1.812"
1
13/16"
1
27/32"
1.85"
1
55/64"
1.87"
1
7/8"
1
29/32"
1
15/16"
1.94"
1
31/32"
1
63/64"
2"
2.06"
2
1/16"
2.063"
2.12"
2
1/8"
2.156"
2
3/16"
2.219"
2
15/64"
2
1/4"
2
5/16"
2
11/32"
2
3/8"
2
7/16"
2.438"
2
15/32"
2
1/2"
2.56"
2
9/16"
2.563"
2
19/32"
2
5/8"
2
11/16"
2.688"
2
3/4"
2
25/32"
2
13/16"
2.813"
2.844"
2
7/8"
2.88"
2.95"
3"
3.06"
3
1/16"
3.063"
3
3/32"
3
1/8"
3
3/16"
3
1/4"
3
3/8"
3
13/32"
3
1/2"
3
9/16"
3
5/8"
3
11/16"
3
3/4"
3
13/16"
3
7/8"
3.88"
3
15/16"
4"
4
1/8"
4
3/16"
4
1/4"
4
9/32"
4
1/2"
4
9/16"
4
5/8"
4
3/4"
5
5/32"
5
1/4"
5
9/32"
5
5/16"
5
1/2"
6"
6
1/4"
6
11/32"
6
1/2"
7"
4.5 mm
6 mm
7.9 mm
8 mm
8.5 mm
9 mm
9.2 mm
9.5 mm
9.8 mm
9.9 mm
10 mm
10.8 mm
11 mm
11.2 mm
11.23 mm
11.4 mm
11.5 mm
11.7 mm
11.9 mm
12 mm
12.19 mm
12.2 mm
12.45 mm
12.5 mm
12.55 mm
12.7 mm
13 mm
13.46 mm
13.5 mm
13.9 mm
14 mm
14.1 mm
14.27 mm
14.3 mm
14.4 mm
14.5 mm
14.7 mm
14.73 mm
15 mm
15.19 mm
15.2 mm
15.5 mm
15.88 mm
16 mm
16.1 mm
16.13 mm
17 mm
17.17 mm
17.2 mm
17.4 mm
17.45 mm
17.5 mm
17.78 mm
17.81 mm
18 mm
18.03 mm
18.8 mm
19 mm
19.05 mm
19.15 mm
19.2 mm
19.71 mm
20 mm
20.5 mm
20.62 mm
21 mm
21.62 mm
21.8 mm
22 mm
22.22 mm
22.86 mm
22.99 mm
23 mm
23.39 mm
23.77 mm
23.8 mm
24 mm
25 mm
25.4 mm
26 mm
27 mm
28 mm
28.57 mm
29 mm
29.2 mm
29.21 mm
30 mm
30.15 mm
30.35 mm
30.4 mm
30.48 mm
31 mm
31.04 mm
31.75 mm
32 mm
33 mm
33.02 mm
34 mm
34.92 mm
35 mm
36 mm
37 mm
38 mm
38.1 mm
38.7 mm
39.37 mm
40 mm
41.27 mm
41.28 mm
42 mm
42.67 mm
42.68 mm
43 mm
45 mm
45.72 mm
46 mm
46.02 mm
46.04 mm
47 mm
47.63 mm
48 mm
49 mm
50 mm
50.8 mm
51 mm
52 mm
53 mm
53.5 mm
53.97 mm
54 mm
55 mm
57 mm
57.15 mm
58 mm
60 mm
60.33 mm
62 mm
62.69 mm
64 mm
65 mm
66 mm
66.67 mm
67 mm
69.85 mm
70 mm
70.64 mm
71 mm
72 mm
73 mm
73.03 mm
75 mm
76 mm
76.2 mm
78 mm
79.5 mm
80 mm
82 mm
82.55 mm
83 mm
85 mm
89 mm
90 mm
90.47 mm
92.07 mm
95 mm
96 mm
100 mm
102 mm
108 mm
110 mm
111 mm
Gear Pitch Diameter
40 mm
42 mm
42.4 mm
45 mm
48 mm
50 mm
55 mm
60 mm
80 mm
Overall Width
14 mm
16 mm
20 mm
24 mm
27 mm
36 mm
Face Width
6 mm
10 mm
11 mm
12 mm
22 mm
Hub Width
10 mm
12 mm
14 mm
15 mm
Gear Type
Bevel
Helical
Ratchet
Spur
Worm
Shaft Type
Round
Pressure Angle
20°
DFARS Specialty Metals
Exempt
REACH
Compliant
RoHS
Compliant
Export Control Classification Number (ECCN)
EAR99
Chain Standard
ISO
Sprocket Type
Drive
Specifications Met
DIN 8187
ISO 606
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27 Products
Drive Sprockets
Sprockets
Sprocket teeth mesh with your roller chain to smoothly transmit power
5 products
Other Products
Spur Gears
The simplest type of gear for transferring motion, with straight, parallel teeth
14 products
Ratchet Gears
Couple with a pawl to transmit motion in one direction and stop it in the other
2 products
Worm Gears
Pair with a gear worm to reduce speed while transferring motion at a right angle in one direction
2 products
Helical Gears
Curved teeth stay in contact longer to transmit heavier loads at higher speeds than spur gears
2 products
Bevel Gears
Reduce speed while transmitting motion at a right angle
1 product
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)