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10B31 sprockets with a stock bore comes with the standard 20 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
Sprocket Size: 35SH45
Bearing Size: 5209-ZZ
This 50BS51 sprocket features a 1-3/4" finished bore including a key-way and two setscrews
Our UCTB206-19 bearings are manufactured to industry standard dimensions
50BS47 Sprocket With 1-1/4" Finished Bore filter_H35B20 10B31 sprockets with a stockThis 50BS47 sprocket features a 1 1 4" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #50 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore
