D40SK52 Sprocket (QD Type) Roller Chain by Size 100B28H sprockets with a stock

100B28H sprockets with a stock bore comes with the standard 1-1/4" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

Sprocket Size: 80SF28

SBPP205 Bearing Dimensions

For more information on a three groove 35V1130SF sheave

This 50BS24 sprocket featured a 1-3/8" finished bore with a key-way and two set screws

D40SK52 Sprocket (QD Type) Roller Chain by Size 100B28H sprockets with a stockThis D40SK52 sprocket is a durable, high quality, and precision double sprocket that is manufactured to accept a SK Bushing. Something that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 2 double roller chain and sprocket thus preventing premature wear or breakage and this means that it will directly interchange with most other manufactures sprockets. This sprocket is also black