Abstract
Taper roller bearings are important part of gear reducers, and their work property affects behavior of the reducers. Pre-tightening of taper-roller bearings affects both meshing contact of the gears and lubrication between the rollers and raceways of the bearings. The influence is analyzed by finite element method in this work. Firstly, a finite element model of roller bearings is established by using Reynolds equation and considering the surface roughness. Then, Stress fields in the roller and the raceway are calculated by adding load and solving, obtaining the maximum stress and strain of the bearings. Finally, effect of the pre-tightening on the work property of the bearings are analyzed by the obtained the maximum stress and strain.
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