60BS50 Sprocket With 1-5/8" Finished Bore 100B24 Sprockets This 1B5V58 Sheave uses a

This 1B5V58 Sheave uses a B bushing

This 25V1030SK Sheave uses an SK bushing

Limiting Speed (ZZ): 4500 RPM

60A72 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes

60BS50 Sprocket With 1-5/8" Finished Bore 100B24 Sprockets This 1B5V58 Sheave uses aThis 60BS50 sprocket features a 1 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 #60 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