RADIAL THRUST BALL BEARING Russian patent published in 2013 - IPC F16C19/18 

FIELD: machine building.

SUBSTANCE: nominal angle of contact in radial thrust ball bearing corresponds to ratio between radial and axial components of outer load and equals β₀=arctg((m·Pr)^1/3/Ро^1/3). Difference between diameters of races of opposed rings varies with race profiles and solids of revolution: where ΔD is difference between diameters of races of opposed rings; Po and Pr are axial and radial forces; β₀ is nominal angle of contact; ds is diameter of balls; rg₀ is mean radius of race profile of opposed rings; m is factor dependent on quantity of balls in bearing (at z=8 m=2.82, at z=20 m=3.59, at z=46 m=3.99, and at z→∞ m=4.32).

EFFECT: optimised contact geometry, reduced load at balls, longer life.

1 dwg