80BS28 Sprocket With 1-3/4" Finished Bore Quad Strand Metric Roller Chain the 10B K2 attachment has

the 10B K2 attachment has a bent tab on both sides with two holes each for mounting

Bearing Size: 6214

SER204 bearing is a normal-duty ball bearing insert with a snap ring made to C3 precision standards and utilizes set-screws to secure to a 20mm shaft

our UCHA207 bearing has added features that improve the overall life and performance of the unit

80BS28 Sprocket With 1-3/4" Finished Bore Quad Strand Metric Roller Chain the 10B K2 attachment hasThis 80BS28 sprocket features a 1 3 4" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 28 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 #80 roller chain and sprocket thus preventing premature