50SDS20 Sprocket (QD Type) 50B44 Sprockets This 3B60SD sheave features three

This 3B60SD sheave features three grooves

Average Tensile Strength: 622

This 23V265JA Sheave uses a JA bushing

This 120BS26 sprocket features a 1-1/4" finished bore with a key-way and two set screws

50SDS20 Sprocket (QD Type) 50B44 Sprockets This 3B60SD sheave features threeThis 50SDS20 sprocket is a durable, high quality, and precision sprocket with hardened teeth that is manufactured to accept a SDS bushing. Sprockets that have hardened teeth last longer, perform better, 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. Meeting strict ANSI Standards