What are the series of cylindrical roller bearings such as NN and NNU and nncf?

Answer:

5, NUP shape: the outer ring has double stalls, and the roller can not be separated, the inner ring single file side can fall off from the side, but the inner ring side of the side of a positioning ring, you can take off.Cylindrical roller bearings include double row, NN, NNU and four row cylindrical roller bearings. Cylindrical roller bearing by stamping steel cage, large size or for high-speed rotating with brass turning cage, double row or four row cylindrical roller bearing with bolt holder, to prolong the service life of the bearing.

2, NU shape: the outer ring has two stalls, with the roller can not be separated, the inner ring without stalls, can be free from both sides of the fall;3, NF shape: inner ring with double stalls, and roller can not be separated, the outer ring has a single edge, can only fall off from the side;4, NJ shape: the outer ring has double stalls, and the roller can not be separated, the inner ring has a single edge, can only fall off from the side;

The difference between cylindrical roller bearings N, NU, NF and NJCylindrical roller bearings are the simplest type of bearings in roller bearings. The inner, outer, outer and roller are in line contact, and the radial load capacity is large, which is suitable for high-speed rotation. Cylindrical roller bearings are separated type, installation and disassembly is relatively simple. Basic form has:N, NU, NF, NJ, NUP:L N shape: inner ring with double stalls, and roller can not be separated, the outer ring without stalls, free from both sides of the fall off;