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pitch 31 75

100B Martin Roller Chain Sprockets steel, C45 pilot bore

100B Martin Roller Chain Sprockets steel, C45 pilot bore

American Martin Standard roller chain sprocket, 100B, pitch 31.75mm, roller diam 19.05mm, pilot bore

Model:100B Martin Standard Roller Chain Sprocket

BS(20B) Roller Chain Sprockets steel, C45 pilot bore

BS(20B) Roller Chain Sprockets steel, C45 pilot bore

British Standard roller chain sprocket, 20B, pitch 31.75mm, roller diam 19.05mm, pilot bore

Model:20B British Standard Roller Chain Sprocket