... . Load capacity, mainly bear radial load. Rolling ring ribs with small friction, suitable for high-speed rotation ... . Whether the ribs under the ring, divided NU, NJ, NUP, N, NF and ... double-row bearings. The bearing is the inner ring, outer ring detachable structure. No inner or outer ribs of ... and outer rings of a double-side ribs, the other side of the ring has a single rib of ...