We supply:impact roller, troughing rollers,friction aligning rollers,spial rollers ... conveyor idler rollers, conveyor rollers,conveyor idler rollers, roller frame, roller support design and supply. All of our products ... C45, or as request.3. Bearing: Single & double row deep groove ball bearing with C3 clearance, the brand can ... , and so on. Rubber ring impact idler roller for belt conveyors machinery