SPHERICAL BEARING Russian patent published in 2015 - IPC F16C19/02 F16C19/55 F16C33/40 F16C33/58 

FIELD: machine building.

SUBSTANCE: spherical bearing comprises outer racer composed by coupled ring part (1) with concave spherical working surface, ring part (2) with convex spherical working surface and circular sleeve (3), as well as inner race (4), two rows of balls (5, 7) fitted in two coupled cages (6, 8). Inner racer (4) is arranged between cages (6, 8) with balls (5, 7) has two spherical surfaces each being coupled by appropriate row of balls (5, 7) with appropriate spherical surface of outer racer (1-3) surrounding inner racer (4). All spherical surfaces of racers share common centre aligned with gravity centre of the instrument outside the bearing. Inner racer (4) comprises elements of securing to the instrument arm. Sleeve (3) comprises flange (9) for bearing to be secured to instrument support assy. Racers (1, 2, 4) and sleeve (3) are made of metal, for example, steel or ceramic material.

EFFECT: stable operation at high vibratory loads that spring up in three mutually perpendicular axes.

5 cl, 1 dwg