... rotating. According to the rings have raised edge, can divide a NU, NJ, NUP, N, NF, bearings, and NNU, NN, double ... have raised edge of single cylinder roller bearings, can take a certain degree of a direction axial load. General use stamping steel maintains ... are also part of the use of polyamide forming maintains a. Cylindrical roller bearing features: 1. Roller and groove for line ...