50BS31 High-Performance Sprocket 1-15/16", USA Roller Chain 40B28 Sprockets This 140A19 sprocket is a

This 140A19 sprocket is a durable

120A45 sprockets with a stock bore comes with a 1-1/2" inside diameter plain hole and can be easily machine bored to custom sizes

the 6012-ZZ bearing features raceways that are precision honed to a superb finish

For additional information or to get pricing and availability on a 4B38SD sheave

Bearing Size: 6217-2RS

50BS31 High-Performance Sprocket 1-15/16", USA Roller Chain 40B28 Sprockets This 140A19 sprocket is aThis 50BS31 sprocket features a 1 15 16" 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