12B Chain Sprockets
12B roller chain sprockets are manufactured for metric 12B roller chain and are manufactured in accordance with ISO, DIN, and BS228/3 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 12B sprockets, if you don't see the exact sprocket you need we also custom manufacture sprockets.
12B A-Plate Sprockets:
Sprocket Size
|
Tooth Count
|
Pitch Diameter
|
Stock Bore
|
Sprocket Weight (kg)
|
---|---|---|---|---|
12A11 | 11 | 67.62mm | 14mm | 0.36 |
12A12 | 12 | 73.60mm | 14mm | 0.42 |
12A13 | 13 | 79.60mm | 14mm | 0.48 |
12A14 | 14 | 85.61mm | 14mm | 0.54 |
12A15 | 15 | 91.63mm | 14mm | 0.60 |
12A16 | 16 | 97.65mm | 14mm | 0.68 |
12A17 | 17 | 103.67mm | 14mm | 0.77 |
12A18 | 18 | 109.71mm | 14mm | 0.85 |
12A19 | 19 | 115.74mm | 14mm | 0.95 |
12A20 | 20 | 121.78mm | 14mm | 1.08 |
12A21 | 21 | 127.82mm | 16mm | 1.15 |
12A22 | 22 | 133.86mm | 16mm | 1.24 |
12A23 | 23 | 139.90mm | 19mm | 1.33 |
12A24 | 24 | 145.95mm | 19mm | 1.47 |
12A25 | 25 | 151.99mm | 19mm | 1.63 |
12A26 | 26 | 158.04mm | 19mm | 1.72 |
12A27 | 27 | 164.09mm | 19mm | 1.91 |
12A28 | 28 | 170.14mm | 19mm | 1.99 |
12A29 | 29 | 176.19mm | 19mm | 2.44 |
12A30 | 30 | 182.25mm | 19mm | 2.48 |
12A31 | 31 | 188.30mm | 19mm | 2.28 |
12A32 | 32 | 194.35mm | 19mm | 2.62 |
12A33 | 33 | 200.41mm | 19mm | 2.77 |
12A34 | 34 | 206.46mm | 19mm | 2.91 |
12A35 | 35 | 212.52mm | 19mm | 3.19 |
12A36 | 36 | 218.57mm | 19mm | 3.21 |
12A37 | 37 | 224.63mm | 19mm | 3.52 |
12A38 | 38 | 230.69mm | 24mm | 3.67 |
12A39 | 39 | 236.74mm | 24mm | 3.87 |
12A40 | 40 | 242.80mm | 24mm | 4.00 |
12A41 | 41 | 248.86mm | 24mm | 4.24 |
12A42 | 42 | 254.92mm | 24mm | 4.53 |
12A43 | 43 | 260.98mm | 24mm | 4.58 |
12A44 | 44 | 267.03mm | 25mm | 4.99 |
12A45 | 45 | 273.09mm | 25mm | 5.14 |
12A46 | 46 | 279.15mm | 25mm | 5.33 |
12A47 | 47 | 285.21mm | 25mm | 5.70 |
12A48 | 48 | 291.27mm | 25mm | 5.75 |
12A50 | 50 | 303.39mm | 25mm | 6.45 |
12A54 | 54 | 327.63mm | 32mm | 7.33 |
12A57 | 57 | 345.81mm | 32mm | 8.11 |
12A60 | 60 | 363.99mm | 32mm | 9.19 |
12A65 | 65 | 394.30mm | 32mm | 10.65 |
12A70 | 70 | 424.61mm | 32mm | 12.45 |
12A72 | 72 | 436.73mm | 32mm | 13.22 |
12A76 | 76 | 460.98mm | 32mm | 14.78 |
12A80 | 80 | 485.23mm | 32mm | 20.75 |
12A84 | 84 | 509.48mm | 32mm | 21.78 |
12A95 | 95 | 576.17mm | 32mm | 23.46 |
12A96 | 96 | 582.23mm | 32mm | 23.71 |
12A114 | 114 | 691.36mm | 32mm | 28.16 |
12B B-Hub Sprockets:
Sprocket Size
|
Tooth Count
|
Pitch Diameter
|
Stock Bore
|
Maximum Bore
|
Hub Diameter
|
Length Thru Bore (LTB)
|
Sprocket Weight (kg)
|
---|---|---|---|---|---|---|---|
12B11 | 11 | 67.62mm | 12mm | 32mm | 47mm | 35mm | 0.53 |
12B12 | 12 | 73.60mm | 12mm | 35mm | 53mm | 35mm | 0.67 |
12B13 | 13 | 79.60mm | 12mm | 38mm | 59mm | 35mm | 0.75 |
12B14 | 14 | 85.61mm | 12mm | 42mm | 64mm | 35mm | 0.91 |
12B15 | 15 | 91.63mm | 12mm | 45mm | 70mm | 35mm | 1.14 |
12B16 | 16 | 97.65mm | 16mm | 50mm | 75mm | 35mm | 1.27 |
12B17 | 17 | 103.67mm | 16mm | 52mm | 80mm | 35mm | 1.46 |
12B18 | 18 | 109.71mm | 16mm | 52mm | 80mm | 35mm | 1.69 |
12B19 | 19 | 115.74mm | 16mm | 60mm | 90mm | 35mm | 1.78 |
12B20 | 20 | 121.78mm | 16mm | 64mm | 90mm | 35mm | 2.10 |
12B21 | 21 | 127.82mm | 20mm | 64mm | 100mm | 40mm | 2.27 |
12B22 | 22 | 133.86mm | 20mm | 64mm | 100mm | 40mm | 2.38 |
12B23 | 23 | 139.90mm | 20mm | 67mm | 100mm | 40mm | 2.49 |
12B24 | 24 | 145.95mm | 20mm | 67mm | 100mm | 40mm | 2.62 |
12B25 | 25 | 151.99mm | 20mm | 67mm | 100mm | 40mm | 2.78 |
12B26 | 26 | 158.04mm | 20mm | 67mm | 100mm | 40mm | 2.89 |
12B27 | 27 | 164.09mm | 20mm | 67mm | 100mm | 40mm | 3.05 |
12B28 | 82 | 170.14mm | 20mm | 67mm | 100mm | 40mm | 3.12 |
12B29 | 29 | 176.19mm | 20mm | 67mm | 100mm | 40mm | 3.30 |
12B30 | 30 | 182.25mm | 20mm | 67mm | 100mm | 40mm | 3.44 |
12B31 | 31 | 188.30mm | 20mm | 67mm | 100mm | 40mm | 3.50 |
12B32 | 32 | 194.35mm | 20mm | 67mm | 100mm | 40mm | 3.75 |
12B33 | 33 | 200.41mm | 20mm | 67mm | 100mm | 40mm | 3.82 |
12B34 | 34 | 206.46mm | 20mm | 67mm | 100mm | 40mm | 3.99 |
12B35 | 35 | 212.52mm | 20mm | 67mm | 100mm | 40mm | 4.10 |
12B36 | 36 | 218.57mm | 20mm | 67mm | 100mm | 40mm | 4.35 |
12B37 | 37 | 224.63mm | 20mm | 67mm | 100mm | 40mm | 4.64 |
12B38 | 38 | 230.69mm | 25mm | 70mm | 107mm | 40mm | 4.92 |
12B39 | 39 | 236.74mm | 25mm | 70mm | 107mm | 40mm | 5.15 |
12B40 | 40 | 242.80mm | 25mm | 70mm | 107mm | 40mm | 5.22 |
12B41 | 41 | 248.86mm | 25mm | 70mm | 107mm | 40mm | 5.51 |
12B42 | 42 | 254.92mm | 25mm | 70mm | 107mm | 40mm | 5.78 |
12B43 | 43 | 260.98mm | 25mm | 70mm | 107mm | 40mm | 5.90 |
12B44 | 44 | 267.03mm | 25mm | 70mm | 107mm | 40mm | 6.30 |
12B45 | 45 | 273.09mm | 25mm | 70mm | 107mm | 40mm | 6.34 |
12B46 | 46 | 279.15mm | 25mm | 70mm | 107mm | 40mm | 6.62 |
12B47 | 47 | 285.21mm | 25mm | 70mm | 107mm | 40mm | 6.80 |
12B48 | 48 | 291.27mm | 25mm | 70mm | 107mm | 40mm | 7.18 |
12B50 | 50 | 303.39mm | 25mm | 70mm | 107mm | 40mm | 8.01 |
12B54 | 54 | 327.63mm | 32mm | 70mm | 110mm | 45mm | 9.80 |
12B57 | 57 | 345.81mm | 32mm | 70mm | 110mm | 45mm | 10.10 |
12B60 | 60 | 363.99mm | 32mm | 70mm | 110mm | 45mm | 11.44 |
12B65 | 65 | 394.30mm | 32mm | 70mm | 110mm | 45mm | 13.12 |
12B70 | 70 | 424.61mm | 32mm | 70mm | 110mm | 45mm | 14.51 |
12B72 | 72 | 436.73mm | 32mm | 80mm | 120mm | 50mm | 15.50 |
12B76 | 76 | 460.98mm | 32mm | 80mm | 120mm | 50mm | 17.26 |
12B80 | 80 | 485.23mm | 32mm | 80mm | 120mm | 50mm | 19.00 |
12B84 | 84 | 509.48mm | 32mm | 80mm | 120mm | 50mm | 21.07 |
12B95 | 95 | 576.17mm | 32mm | 92mm | 140mm | 55mm | 23.83 |
12B96 | 96 | 582.23mm | 32mm | 92mm | 140mm | 55mm | 26.61 |
12B114 | 114 | 691.36mm | 32mm | 92mm | 140mm | 55mm | 33.98 |
12B Taper Bushed Sprockets:
Sprocket Size
|
Tooth Count
|
Pitch Diameter
|
Bushing Number
|
Bushing Max. Bore
|
Dimension (L)
|
Dimension (C)
|
Sprocket Weight (kg)
|
Bushing Weight (kg)
|
---|---|---|---|---|---|---|---|---|
12BTB11H | 11 | 67.62mm | 1008 | 25.40mm | 22.23mm | 46.04mm | 0.27 | 0.14 |
12BTB12H | 12 | 73.61mm | 1008 | 25.40mm | 22.23mm | 49.21mm | 0.36 | 0.14 |
12BTB13H | 13 | 79.60mm | 1210 | 31.75mm | 25.40mm | 62.69mm | 0.41 | 0.27 |
12BTB14H | 14 | 85.61mm | 1210 | 31.75mm | 25.40mm | 62.69mm | 0.45 | 0.27 |
12BTB15H | 15 | 91.63mm | 1610 | 41.28mm | 25.40mm | 70.64mm | 0.54 | 0.41 |
12BTB16H | 16 | 97.65mm | 1610 | 41.28mm | 25.40mm | 76.20mm | 0.73 | 0.41 |
12BTB17H | 17 | 103.67mm | 1610 | 41.28mm | 25.40mm | 82.55mm | 0.82 | 0.41 |
12BTB18H | 18 | 109.70mm | 1610 | 41.28mm | 25.40mm | 82.55mm | 0.91 | 0.41 |
12BTB19H | 19 | 115.74mm | 1610 | 41.28mm | 25.40mm | 82.55mm | 1.00 | 0.41 |
12BTB20H | 20 | 121.78mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.00 | 0.77 |
12BTB21H | 21 | 127.82mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.18 | 0.77 |
12BTB22H | 22 | 133.86mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.27 | 0.77 |
12BTB23H | 23 | 139.90mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.27 | 0.77 |
12BTB24H | 24 | 145.95mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.50 | 0.77 |
12BTB25H | 25 | 151.99mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.74 | 0.77 |
12BTB26H | 26 | 158.04mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.74 | 0.77 |
12BTB27H | 27 | 164.09mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 1.80 | 0.77 |
12BTB28H | 28 | 170.14mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 2.04 | 0.77 |
12BTB30H | 30 | 182.25mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 2.32 | 0.77 |
12BTB32 | 32 | 194.35mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 2.48 | 0.77 |
12BTB35 | 35 | 212.52mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 2.71 | 0.77 |
12BTB36 | 36 | 218.57mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 2.78 | 0.77 |
12BTB38 | 38 | 230.69mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 3.36 | 0.77 |
12BTB40 | 40 | 242.80mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 3.53 | 0.77 |
12BTB42 | 42 | 254.92mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 3.71 | 0.77 |
12BTB45 | 45 | 273.09mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 3.98 | 0.77 |
12BTB48 | 48 | 291.27mm | 2012 | 50.80mm | 31.75mm | 90.47mm | 4.24 | 0.77 |
12BTB54 | 54 | 327.63mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 8.30 | 1.59 |
12BTB57 | 57 | 345.81mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 8.76 | 1.59 |
12BTB60 | 60 | 363.99mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 9.22 | 1.59 |
12BTB68 | 68 | 412.49mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 10.45 | 1.59 |
12BTB70 | 70 | 424.61mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 10.76 | 1.59 |
12BTB72 | 72 | 436.73mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 11.06 | 1.59 |
12BTB76 | 76 | 460.98mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 11.68 | 1.59 |
12BTB84 | 84 | 509.48mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 12.91 | 1.59 |
12BTB95 | 95 | 576.17mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 14.60 | 1.59 |
12BTB96 | 96 | 582.23mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 14.75 | 1.59 |
12BTB114 | 114 | 691.36mm | 2517 | 63.50mm | 44.45mm | 107.95mm | 17.52 | 1.59 |
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Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.