40BS16 High-Performance Sprocket 1-1/4" #120 BTB Type Sprockets Dimension (F): 100

Dimension (F): 100

What sets this 6013-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

UC212-38 Bearing Dimensions

While the phosphate coated and then painted finish adds corrosion resistance to the 3C85E sheave

Dimension (C): 3-9/16"

40BS16 High-Performance Sprocket 1-1/4" #120 BTB Type Sprockets Dimension (F): 100This 40BS16 sprocket featured a 1 1 4" 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 #40 roller chain and sprocket thus preventing premature wear