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Contact force distribution analysis is the foundation of the load-carrying capacity analysis, the drawing of static load-carrying capacity curve, designing and selecting of slewing bearings. The static model of the single-row four point contact ball slewing bearing is established and the contact force distributions are solved under different types of load. The characteristics of contact force distribution of this bearing are analyzed and the influence of bearing parameters on contact force distribution is analyzed. Results show that the characteristics of contact force distributions on raceway are different under different types of load. With the increase in the contact angle and the decrease in the groove curvature radius coefficient, the loads on raceway decrease and the load-carrying capacity of bearing increases.

Contact Force Distribution Analysis on a Single-row Four Point Contact Ball Slewing Bearing