100E40 Sprocket (QD Type) 3020 This 100BS25 sprocket features a

This 100BS25 sprocket features a 2-7/16" finished bore with a key-way and two set screws

and precision 48 tooth sprocket that is manufactured to accept a 3020 bushing

Sprocket Size: 100B15

Sprocket Size: 08B32

100E40 Sprocket (QD Type) 3020 This 100BS25 sprocket features aThis 100E40 sprocket is a durable, high quality, and precision 40 tooth sprocket that is manufactured to accept a E bushing. Something that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket, thus preventing premature wear or breakage and this means that it will directly interchange with most other manufactures sprockets. This sprocket is also black oxide