ROLLER BEARING Russian patent published in 2013 - IPC F16C19/22 F16C33/34 F16C33/58 

FIELD: machine building.

SUBSTANCE: roller bearing comprises inner and outer racers with rollers arranged there between. Inner and outer racer end working surfaces are shaped to section of torus surface smoothly converting into surfaces of grooves made at racer working cylindrical surfaces. Note here that distance between mirror planes of roller end spherical surface and torus surface of said racers is related with radii of said surfaces and spacing between the contact points and racer working cylindrical surfaces by the following relationship: l=(d\2-h)(R\R₁-1), where l is distance between mirror planes of roller end spherical surface and torus surface; d is roller diameter; R is torus surface radius; R₁ is roller end spherical surface radius; h is spacing between the contact points and racer working cylindrical surfaces. R-to-R₁ ratio is selected equal, preferably, to R/R₁=1.1…1.25.

EFFECT: minimized friction between roller ends with racer edges, higher reliability, longer life.

1 dwg