Raydafon Technology Group Co.,Limited
Raydafon Technology Group Co.,Limited
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12B Chain Sprockets

12B Chain Sprockets

Discover Raydafon Group's 12B Chain Sprockets: durable, precision-engineered for smooth power transmission in industrial machinery. Perfect for engineers and manufacturers seeking efficiency, reliability, and superior performance in automotive, robotics, and manufacturing applications. Feel confident with unmatched quality and innovation that solves wear issues and enhances productivity. Trust Raydafon Group for a game-changing solution.
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 Chain Sprockets

12B A-Plate Sprockets:

12B Chain Sprockets

Sprocket Size
Tooth Count
Pitch Diameter
Stock Bore
Sprocket Weight (kg)
12A111167.62mm14mm0.36
12A121273.60mm14mm0.42
12A131379.60mm14mm0.48
12A141485.61mm14mm0.54
12A151591.63mm14mm0.60
12A161697.65mm14mm0.68
12A1717103.67mm14mm0.77
12A1818109.71mm14mm0.85
12A1919115.74mm14mm0.95
12A2020121.78mm14mm1.08
12A2121127.82mm16mm1.15
12A2222133.86mm16mm1.24
12A2323139.90mm19mm1.33
12A2424145.95mm19mm1.47
12A2525151.99mm19mm1.63
12A2626158.04mm19mm1.72
12A2727164.09mm19mm1.91
12A2828170.14mm19mm1.99
12A2929176.19mm19mm2.44
12A3030182.25mm19mm2.48
12A3131188.30mm19mm2.28
12A3232194.35mm19mm2.62
12A3333200.41mm19mm2.77
12A3434206.46mm19mm2.91
12A3535212.52mm19mm3.19
12A3636218.57mm19mm3.21
12A3737224.63mm19mm3.52
12A3838230.69mm24mm3.67
12A3939236.74mm24mm3.87
12A4040242.80mm24mm4.00
12A4141248.86mm24mm4.24
12A4242254.92mm24mm4.53
12A4343260.98mm24mm4.58
12A4444267.03mm25mm4.99
12A4545273.09mm25mm5.14
12A4646279.15mm25mm5.33
12A4747285.21mm25mm5.70
12A4848291.27mm25mm5.75
12A5050303.39mm25mm6.45
12A5454327.63mm32mm7.33
12A5757345.81mm32mm8.11
12A6060363.99mm32mm9.19
12A6565394.30mm32mm10.65
12A7070424.61mm32mm12.45
12A7272436.73mm32mm13.22
12A7676460.98mm32mm14.78
12A8080485.23mm32mm20.75
12A8484509.48mm32mm21.78
12A9595576.17mm32mm23.46
12A9696582.23mm32mm23.71
12A114114691.36mm32mm28.16

12B B-Hub Sprockets:

12B Chain Sprockets

Hot Tags: 12B Chain Sprockets Manufacturer, Custom Sprockets for Chains, Bulk Steel Sprockets Supplier
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Sprocket Size
Tooth Count
Pitch Diameter
Stock Bore
Maximum Bore
Hub Diameter
Length Thru Bore (LTB)
Sprocket Weight (kg)
12B111167.62mm12mm32mm47mm35mm0.53
12B121273.60mm12mm35mm53mm35mm0.67
12B131379.60mm12mm38mm59mm35mm0.75
12B141485.61mm12mm42mm64mm35mm0.91
12B151591.63mm12mm45mm70mm35mm1.14
12B161697.65mm16mm50mm75mm35mm1.27
12B1717103.67mm16mm52mm80mm35mm1.46
12B1818109.71mm16mm52mm80mm35mm1.69
12B1919115.74mm16mm60mm90mm35mm1.78
12B2020121.78mm16mm64mm90mm35mm2.10
12B2121127.82mm20mm64mm100mm40mm2.27
12B2222133.86mm20mm64mm100mm40mm2.38
12B2323139.90mm20mm67mm100mm40mm2.49
12B2424145.95mm20mm67mm100mm40mm2.62
12B2525151.99mm20mm67mm100mm40mm2.78
12B2626158.04mm20mm67mm100mm40mm2.89
12B2727164.09mm20mm67mm100mm40mm3.05
12B2882170.14mm20mm67mm100mm40mm3.12
12B2929176.19mm20mm67mm100mm40mm3.30
12B3030182.25mm20mm67mm100mm40mm3.44
12B3131188.30mm20mm67mm100mm40mm3.50
12B3232194.35mm20mm67mm100mm40mm3.75
12B3333200.41mm20mm67mm100mm40mm3.82
12B3434206.46mm20mm67mm100mm40mm3.99
12B3535212.52mm20mm67mm100mm40mm4.10
12B3636218.57mm20mm67mm100mm40mm4.35
12B3737224.63mm20mm67mm100mm40mm4.64
12B3838230.69mm25mm70mm107mm40mm4.92