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Cylindrical roller and raceway for the line of contact bearing. Large load capacity, mainly bear radial load. Ring wall and rolling friction is small, suitable for high-speed rotation. According to the ferrule has without ribs, can be divided into NU, NJ, NUP, N, NF single row cylindrical roller bearing, and NNU, NN double row cylindrical roller bearing. The bearing inner ring, the outer ring structure can be separated.

Inner ring or outer ring without rib of cylindrical roller bearing, the inner ring and the outer ring can move relatively to the axial direction, so it can be used as free end bearings. On one side of the inner ring and the outer ring of the double rib, the other side of the ring has a single rib of cylindrical roller bearings, can be a direction of the axial load to bear a certain degree of. General stamping steel cage, or copper alloy machined solid cage. But there is also a part of the use of polyamide forming the holder.
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