NSK Cylindrical roller bearing

NSK cylindrical roller bearings are divided into single row bearings such as Nu, NJ, NUP, N and NF and double row bearings of NNU and NN according to whether the ferrule has retaining edge or not. The bearing is a separable structure of inner ring and outer ring. Cylindrical roller bearing with no flange on the inner ring or outer ring, whose inner ring and outer ring can move relative to each other in the axial direction, can be used as a free end bearing. A cylindrical roller bearing with double retaining edges on one side of the inner ring and the outer ring and a single retaining edge on the other side can bear a certain degree of axial load in one direction. Generally, steel plate stamping cage or copper alloy car cage are used. However, some use polyamide formed cages< br>
1. NSK cylindrical roller bearing roller and raceway are in line contact or off-line contact, with large radial bearing capacity, which is suitable for bearing heavy load and impact load< br>2. NSK cylindrical roller bearing has low friction coefficient and is suitable for high speed. The limit speed is close to deep groove ball bearing< br>3. NSK cylindrical roller bearings N and nu can move axially, can adapt to the change of relative position between shaft and shell caused by thermal expansion or installation error, and can be used as free end support< br>4. NSK cylindrical roller bearing has high requirements for shaft or seat hole processing. After bearing installation, the relative deflection of outer ring axis shall be strictly controlled to avoid contact stress concentration< br>5. NSK cylindrical roller bearing inner ring or outer ring can be separated for easy installation and disassembly