40BS59 Sprocket With 5/8" Finished Bore 4016 Coupling Half Sprockets 10B31 sprockets with a stock

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

Limiting Speed (ZZ): 13000 RPM

Dimension (B): 20mm

Dimension (S): 15

2082B25 Sprocket

40BS59 Sprocket With 5/8" Finished Bore 4016 Coupling Half Sprockets 10B31 sprockets with a stockThis 40BS59 sprocket features a 5 8" 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 #40 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 sprockets,