ROLLER BEARING Russian patent published in 2009 - IPC F16C19/49 F16C19/20 B61F15/12 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering, namely to rail and other types of transportation. A roller bearing comprises an outer and inner rings and rollers taking radial load and a ringless ball bearing taking axial load. Radial clearance in the ball bearing is chosen according to the following formula where rg - radius of the ball bearing race, ds - ball diameter, Δr - roller bearing radial clearance, β - contact angle in the ball bearing. Toroidal races of the ringless ball bearing are made in the central part of the roller paths in the roller bearing rings.

EFFECT: increasing working efficiency of the bearing and decreasing its weight and dimensions.

2 cl, 2 dwg