40BS19 High-Performance Sprocket 1-7/16" F What sets this 6211-2RS bearing

What sets this 6211-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

Bushing Used: SK

Bearing Size: 5305

Bearing Insert: UC 207-23

40BS19 High-Performance Sprocket 1-7/16" F What sets this 6211-2RS bearingThis 40BS19 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 #40 roller chain and sprocket thus preventing premature wear