120B Martin Roller Chain Sprockets steel, C45 pilot bore
American Martin Standard roller chain sprocket, 120B, pitch 38.10mm, roller diam 22.23mm, pilot bore
Model:120B Martin Standard Roller Chain Sprocket
American Martin Standard roller chain sprocket, 120B, pitch 38.10mm, roller diam 22.23mm, pilot bore
Model:120B Martin Standard Roller Chain Sprocket
British Standard roller chain sprocket, 24B, pitch 38.10mm, roller diam 25.40mm, pilot bore
Model:24B British Standard Roller Chain Sprocket