... bearings. Loading capacity, mainly bear radial load. Rolling and the side of ring file with a small friction, suitable for high ... bearings such as NU, NJ, NUP, N, NF, etc. and double row bearings such as NNU, NN, etc.. Cylindrical roller bearing ... end of the bearing. One side of inner and outer rings has a double-side files, the other side has a cylindrica roller bearings ...