FIELD: mechanical engineering. SUBSTANCE: unit has bodies of rotation, outer and inner rings mounted on a shaft within a case. The rings are provided with ways profiles of which are formed with intersected arc of circumference and point of intersection of straight lines drown trough points of contact of the body of rotation with ways are positioned at bearing axis. One of the rings has two parts ways of which are the same. One of the parts is mounted for displacing along the other part along the axis of the bearing. EFFECT: simplified design. 1 dwg
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