50BS18 Sprocket With 1-5/8" Finished Bore 80-Tooth Sprocket it fits most major gearbox

it fits most major gearbox brands

Dimension (B): 11mm

Common Interchanges: 35BS27H

5203-ZZ double row shielded ball bearings possess higher radial and axial load capacities in either direction when compared to single-row ball bearings

For more information on a three groove 35V670SK sheave

50BS18 Sprocket With 1-5/8" Finished Bore 80-Tooth Sprocket it fits most major gearboxThis 50BS18 sprocket featured a 1 5 8" 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 #50 roller chain and sprocket thus preventing premature wear