Three-point contact ball bearing for an aeroengine

Abstract

This utility model discloses a three-point contact ball bearing for aero-engines, comprising an outer ring, two inner rings, a cage, and rolling elements. The outer ring and the two inner rings are provided with corresponding grooves forming raceways. The rolling elements are disposed in the cage and assembled within the raceways, with the rolling elements and raceways making three-point contact. Floating support rings are provided on the outer walls of the two inner rings near their corresponding grooves. When the inner rings rotate, the floating support rings undergo radial micro-movement under centrifugal force, supporting the rolling elements. This utility model, by setting floating support rings on the outside of the inner rings, converts the rotational motion of the bearing into the radial motion of the floating support rings when the inner rings rotate, further supporting and positioning the rolling elements, ensuring that the rolling elements are centered in the raceways, further enhancing the bearing's radial and axial load-bearing capacity, and improving its service life.

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