Chinese name: retaining ring English name: [closing] ring Definition: a ring-shaped part fastened to the shaft to prevent other parts mounted on the shaft from moving. Flat retaining ring: A separable substantially flat washer whose inner or outer portion serves as a radial cylindrical roller bearing outer or inner ring rib. Inclined retaining ring: a separable ring with an 'L'-shaped cross-section, the outer part of which acts as an inner rib of a radial roller ball bearing. Intermediate Ring: A separable ring in a two or more row roller bearing that separates and guides each row of rollers. Ribs are narrow shoulders that protrude from the raceway surface parallel to the rolling direction and are used to support and guide the rolling elements and keep them in the bearing. The retaining rings are: taper pin locking retaining ring, screw locking retaining ring, screw locking retaining ring with locking ring, steel wire retaining ring, retaining ring for holes-A type, retaining ring for holes-B type, shaft Use spring retaining ring-A type, shaft spring retaining ring-B type, screw fastening shaft end retaining ring, bolt fastening shaft end retaining ring, wire retaining ring for hole, wire retaining ring for shaft, etc.