Our 35BS12H sprocket is an ANSI standard sprocket with a 1/2" finished bore that has 2 setscrews and 1/8" keyway. This sprocket is available without a keyway here 35BS12 sprockets are a 12 tooth sprocket that works with ANSI #35 roller chain. These sprockets are manufactured from 1045CD carbon steel material. The sprocket teeth are hardened for increased wear resistance.
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