Simulation Analysis of Skew Collision of Needle Roller Bearing Used in Precision Cycloid Reducer

In order to improve the service life of needle roller bearing used in a precision cycloid reducer, and reveal skew collision phenomenon bearing, based on force analysis transmission mechanism reducer considering friction between wheel, roller, cage, crank shaft, dynamic contact rolling bodies is simulated by Hertz elastic contact, where cage pocket hole equivalent spring damping, nonlinear model established. The influence different load clearances deflection impact rotating calculated. results show that inclination rollers under clearances, larger gap, greater fluctuation angle; action shaft suppresses roller; has periodicity, which consistent with roller. loads, load, more there are area, is, smaller middle zone compared two sides; when small, gap 0.3 mm selected, heavy, 0.2 selected make run smoothly.