D40B13H Sprocket With Stock Bore 40B70 Sprockets This 80BS24 sprocket features a

This 80BS24 sprocket features a 2-7/16" finished bore with a key-way and two set screws

AL1066 Leaf Chain is manufactured to ANSI (American) standards and is apart of the AL Series of leaf chains

Bearing Part #: SA205-16

the 6300-ZZ bearing features raceways that are precision honed to a superb finish

Chain Size: BL434

D40B13H Sprocket With Stock Bore 40B70 Sprockets This 80BS24 sprocket features aThis D40B13H sprocket is a durable, high quality, and precision double sprocket with 13 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 2 double roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide