60BS28 Sprocket With 1-7/16" Finished Bore Chain Coupling This 40SK70 sprocket is a

This 40SK70 sprocket is a durable

This 60BS21 sprocket featured a 1-1/2" finished bore with a key-way and two set screws

This 5213-ZZ Bearing is a high-precision premium shielded double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS

Dimension (G): 10

Dimension (OL): 3-13/32"

60BS28 Sprocket With 1-7/16" Finished Bore Chain Coupling This 40SK70 sprocket is aThis 60BS28 sprocket featured a 1 7 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #60 roller chain and sprocket thus preventing premature wear