Ball and roller bearing rotary connection for supporting e.g. crane, has single flexible ball race formed in longitudinal section to provide elastic deformation such that roller bearing is prestressed in circumferential area

摘要

The connection (1) has two ball races (2, 6) concentric to each other, and a roller bearing (13) rolling at the corresponding ball race paths (10, 12) between the races, where one of the ball races (6) is flexibly formed. The single flexible ball race (6) is weakly formed in the longitudinal section to provide a radial elastic deformation such that the roller bearing is prestressed in an entire circumferential area in a loaded condition. The ball race has a base part (7) connected with a connection construction.