double row cylindrical roller bearing

cylindrical roller bearing and the raceway is in line contact bearings. Load capacity, the main radial load. Rolling ring wall friction small, suitable for high-speed rotation. According to ring without ribs, it can be divided into NU, NJ, NUP, N, NF and other single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearing. The bearing is the inner, outer separable structure.