40BS41 Sprocket With 7/8" Finished Bore 1.5" Finished Bore Our superior UCTB206-17 bearing with

Our superior UCTB206-17 bearing with a 1-1/16" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

Pitch Diameter (B/ 5L): 15

This 5208-ZZ Bearing is a high-precision premium shielded double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS

Design-wise

10B8 sprockets with a stock bore comes with the standard 10 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

40BS41 Sprocket With 7/8" Finished Bore 1.5" Finished Bore Our superior UCTB206-17 bearing withThis 40BS41 sprocket features a 7 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,