TWO-WAY SPHERICAL BALL BEARING Russian patent published in 2006 - IPC F16C23/06 B64D47/00 

FIELD: instrument industry.

SUBSTANCE: ball bearing comprises inner and outer races with convex and concave spherical rolling surfaces and two rows of balls set in the common cage and interposed between the convex and concave spherical surfaces of the inner and outer races. All the spherical surfaces have the common center located at the axis of the ball bearing and outside it. The ration of the radius of the grater spherical surface to the radial distance between the ball rows ranges from 5 to 25. The outer race has two ring members that project inward, or the inner race has two ring members that project outward. The races are made of at least two parts.

EFFECT: enhanced reliability.

6 cl, 5 dwg, 1 tbl