RS PRO 21 Tooth Taper Bush Sprocket 12B-1 Chain Type
■ 제품사양
To Fit British Standard Chain 타입 = 12B-1 Number of Teeth = 21 Bore 타입 = Taper Bush 정점 Diameter = 127.8mm Material = Steel Taper Bush Sprockets. Steel taper bush sprockets for BS standard roller chain. For use with taper bushes