40B26 Sprocket With Stock Bore Corrosion-Resistant Roller Chain This 10C90J Sheave uses a

This 10C90J Sheave uses a J QD bushing

Maximum Bore: 1-11/16"

*Note: This Wear Gauge can be used with #35 through #100 roller chains

This 40BB17H idler sprocket features 17 hardened teeth

40B26 Sprocket With Stock Bore Corrosion-Resistant Roller Chain This 10C90J Sheave uses aThis 40B26 sprocket 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 or breakage. This sprocket is also black oxide coated which increases