Pay in 4 interest-free payments of $53.12 Learn more
Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
the 08B SK1 attachment has a straight tab on both sides with one hole each for mounting
100Q21 Sprocket Dimensions
This 100BS12 sprocket features a 1-7/16" finished bore with a key-way and two set screws
Pitch Diameter: 33
Pitch Diameter: 54
120B28 Sprocket With Stock Bore 100B21 Sprockets the 08B SK1 attachment hasThis 120B28 sprocket is a durable, high quality, and precision sprocket with 28 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 120B28 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #120 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated
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