In order to eliminate the defects of needle roller bearing cage after gas soft nitriding,tempering is performed at 180~300 ℃,based on early experiments of austenitic area soft nitriding.

In this paper, the effects of chamfer dimension at the roller end and the grinding undercut of raceway on the longitudinal pressure distribution of the needle rollers with Lundberg s profile, which are used in the needle roller bearings with machined guide rib.

The damage case of general needle roller bearings has been analyzed emphatically after the new type of environmental protection coolant has been adopted in the air donditioner compressor.

As to the problems involving with the application of the roller bearing on the conventional doubling fames,introduction is made to the advantages of the top roller bearing on the new doubling frames introduced by Nantong Wuzhou Textile Machinery Corporation.

The paper analyzed the deflection of a compound planetary gear set and calculated the damage percentage of its roller bearing.

Contact problems for needle bearing of cardan shaft in high speed EMUs

ANSYS-enabled finite element analysis on needle bearings;