100SDS12 Sprocket (QD Type) 31-Tooth Sprocket 875mm pitch 10B chain and

875mm pitch 10B chain and conforms to ISO and DIN dimensional standards for direct interchangeability

This 100BS10 sprocket features a 1-1/4" finished bore with a key-way and two set screws

Sprocket Size: 10B15

The roller of a chain is responsible for the sprocket-to-chain contact

100B39 sprockets with a stock bore come with the standard 1-1/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

100SDS12 Sprocket (QD Type) 31-Tooth Sprocket 875mm pitch 10B chain andThis 100SDS12 sprocket is a durable, high quality, and precision sprocket with 12 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 #100 roller chain and sprocket. Meeting strict ANSI Standards