Common cylindrical roller bearing model difference

Cylindrical roller bearings also have double row NN, NNU and four row cylindrical roller bearings. Cylindrical roller bearings generally use steel stamping cages, brass turning cages are used for larger sizes or for high-speed rotation, and double-row or four-row cylindrical roller bearings use latch cages to prolong bearing service life. It is widely used in reducer, pulley block, printing machinery and other occasions.