20B-3 Metric Roller Chain Sprockets
20B-3 roller chain sprockets are manufactured for metric 20B-3 roller chain and are manufactured in accordance with ISO, DIN, and BS228 standards. Our sprockets are precision manufactured from high-quality steel, directly interchange with other manufactures, and are engineered for superb performance and durability. Common styles of these sprockets include B-Hub, C-Hub, and taper bushed type but others are available upon request. The below charts show our standard sizes for 20B-3 sprockets, if you don't see the exact sprocket you need we also custom manufacture sprockets. To get a quote on 20B-3 sprockets or for more information please contact us and we will be happy to assist you.20B-3 B-Hub Sprockets

|
Tooth Count
|
Pitch Diameter
|
Stock Bore
|
Maximum Bore
|
Hub Diameter (H)
|
Length Thru Bore (L)
|
Sprocket Weight (kg)
|
---|---|---|---|---|---|---|---|
|
10 | 102.75mm | 25mm | 47mm | 69mm | 110mm | 3.95 |
11 | 112.70mm | 25mm | 52mm | 79mm | 115mm | 5.26 | |
12 | 122.67mm | 25mm | 60mm | 90mm | 115mm | 6.21 | |
13 | 132.67mm | 25mm | 64mm | 100mm | 115mm | 9.26 | |
14 | 142.68mm | 25mm | 73mm | 110mm | 115mm | 9.76 | |
15 | 152.71mm | 25mm | 80mm | 120mm | 115mm | 10.81 | |
16 | 162.75mm | 25mm | 80mm | 120mm | 115mm | 12.76 | |
17 | 172.79mm | 25mm | 80mm | 120mm | 115mm | 14.76 | |
18 | 182.84mm | 25mm | 80mm | 120mm | 115mm | 16.71 | |
19 | 192.90mm | 25mm | 80mm | 120mm | 115mm | 19.13 | |
20 | 202.96mm | 25mm | 80mm | 120mm | 115mm | 21.57 | |
21 | 213.03mm | 25mm | 92mm | 140mm | 115mm | 23.36 | |
22 | 223.10mm | 25mm | 92mm | 140mm | 115mm | 25.65 | |
23 | 233.17mm | 25mm | 92mm | 140mm | 115mm | 27.90 | |
24 | 243.25mm | 32mm | 95mm | 145mm | 120mm | 27.19 | |
25 | 253.32mm | 32mm | 95mm | 145mm | 120mm | 27.90 | |
26 | 263.41mm | 32mm | 95mm | 145mm | 120mm | 31.90 | |
27 | 273.49mm | 32mm | 95mm | 145mm | 120mm | 35.90 | |
28 | 283.57mm | 32mm | 95mm | 145mm | 120mm | 39.90 | |
30 | 303.75mm | 32mm | 95mm | 145mm | 120mm | 47.90 | |
32 | 323.92mm | 32mm | 95mm | 145mm | 127mm | 51.57 |
20B-3 C-Hub Sprockets

|
Tooth Count
|
Pitch Diameter
|
Stock Bore
|
Maximum Bore
|
Hub Diameter (H)
|
Length Thru Bore (L)
|
Sprocket Weight (kg)
|
---|---|---|---|---|---|---|---|
35 | 354.20mm | 32mm | 97mm | 152mm | 127mm | 57.29 | |
36 | 364.29mm | 32mm | 97mm | 152mm | 127mm | 59.35 | |
38 | 384.48mm | 40mm | 97mm | 152mm | 127mm | 62.56 | |
42 | 424.86mm | 40mm | 97mm | 152mm | 127mm | 70.12 | |
45 | 455.15mm | 40mm | 97mm | 152mm | 127mm | 75.84 | |
57 | 576.35mm | 40mm | 102mm | 191mm | 127mm | 100.11 | |
60 | 606.66mm | 40mm | 102mm | 191mm | 127mm | 104.86 | |
68 | 687.48mm | 40mm | 102mm | 191mm | 127mm | 117.54 | |
76 | 768.30mm | 40mm | 102mm | 191mm | 127mm | 130.21 | |
80 | 808.71mm | 40mm | 102mm | 191mm | 127mm | 136.55 | |
95 | 960.28mm | 40mm | 102mm | 191mm | 127mm | 160.31 | |
E20C114 | 114 | 1152.27mm | 40mm | 102mm | 191mm | 127mm | 190.41 |
Requesting 20B-3 Sprockets
To get a quote on 20B-3 sprockets give us a call, send us an email, or fill out the request for quote form and someone from our customer service team will contact you.