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40BS21 3/4" Finished Bore Sprocket Dimensions:
Bearing Insert: HC 206-18
tighten the screws alternatively and progressively until they are pulled up tight
Our HCST210-32 bearing is dimensionally made to industry standards
Hub Diameter: 1-21/32"
D120B16 Sprocket With Stock Bore 35B72 Sprockets 40BS21 3/4" Finished Bore SprocketThis D120B16 sprocket is a durable, high quality, and precision double sprocket with 16 hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #120 2 double roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide
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