Sprockets facility it’s moving and transmission function by the joggling with the chain. It owns the features of gear and belt transmission parts, with higher precision request on technical features.Standard sprockets include: DIN sprockets, DIN plate wheel, DIN Taper-Lock sprocket, DIN casting sprockets, ANSI sprocket, ANSI plate wheel and so on.We zhengzhou Sinco Machine supply not only these standard parts, but also by client’s require and drawing. Sample is available after ordering. Regards,Ms. Ginger LeeZhengzhou Sinco Machine Co., Ltd