Abstract
Double-row tapered roller bearing 353112 is used in trucks, and the external load and pressure distribution of the bearing are calculated combining with the specific operating conditions. Tapered roller bearings typically employ roller profile modification to equalize the load distribution, minimizing the stress concentration at the roller ends. Doing FEA (finite element analysis) on the contact stress with the changing roller crowning between roller and races, the appropriate roller profile and the crown drop of roller can be achieved. Finally the best control equation of roller crowning is obtained. It has important guiding significance for the improvement of roller crowning design of truck hub bearings.
Highlights
The hub bearing is an important component for transmitting movement and force in the truck
The topic discussed in this paper is the force situation and roller crowning of doublerow tapered roller bearing 353112 in the axles of trucks
According to the technical parameters of the bearing, the crown drop of roller can be obtained by combining the operating conditions, FEM analysis and optimal roller profile
Summary
The hub bearing is an important component for transmitting movement and force in the truck. The topic discussed in this paper is the force situation and roller crowning of doublerow tapered roller bearing 353112 in the axles of trucks. Life of bearings has been a subject of considerable interest to both bearing manufactures and designers. The improvement of bearing life has always been a concerned issue, which involves bearing materials and manufacturing level, and involves the loading situation [1,2,3,4] and design scheme of bearings, especially generatrix profile selection [5] and the crown drop of rollers. According to the technical parameters of the bearing, the crown drop of roller can be obtained by combining the operating conditions, FEM analysis and optimal roller profile
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