(Common CZPT ica, KANA, CZPT pen, ANSI Common or made to drawing)
surface treatment method is nature color , we can do blacken, zinc plated and so on.
Bushing Sprockets: Bushing sprockets can simplify chain technique routine maintenance by replacing only worn sprocket assemblies, although the bushings can still be reused. The bushing also has a tightly tapered mating area that can transmit larger torques than easy crucial components. Shut-fitting surfaces provide far better performance in purposes with heavy start/quit functions or shock loads.