- Phone ：13809077557
- Add：Private Industrial Park,Niutang Town
Heavy duty needle roller bearings consist of a machined and ground channel-shaped outer ring with a component of needle rollers retained and guided by a cage. The high-strength cage.The high-strength cage retains and guides the rollers. An optional groove and hole in the outer ring facilitate relubrication.These bearings can be used with or without a machined or ground inner ring, depending on the suitablility of the shaft as a raceway surface.