Cylindrical Roller Bearings NN3009

Cylindrical roller and roller way for line contact bearing. Load capacity, mainly bear radial load. Rolling body and ring guard friction small, suitable for high speed rotation. According to the ring for guard, can divide a NU, NJ, NUP, N, NF and single row bearing, and NNU, NN and double bearing. The bearing is inner ring and outer separable structure. Inner ring or no outer rim of cylindrical roller bearing, its outer circle and to axial relative movement, so can be used as free end bearing use. In outer circle and one side of two guard, the other side of the ring with a single guard of cylindrical roller bearing, may have a certain degree of one direction axial load. General use steel plate stamping cage, or copper alloy car system cage. But there are also part of the use of polyamide forming cage