40BS38 Sprocket With 1" Finished Bore 6800 Series Deep Groove Ball Bearings For more information on a

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What separates this 2BK34H pulley from the others is that it is made using a high grade-35 cast iron

SER208 Bearing Dimensions

40BS38 Sprocket With 1" Finished Bore 6800 Series Deep Groove Ball Bearings For more information on aThis 40BS38 sprocket features a 1" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that 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 resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets,