Cross Roller Bearing with Function of Anti-Creep of Retainer

摘要

The cross roller bearing according to the present invention comprises a linear guide rail, a roller accommodating groove in which a plurality of rollers are alternately accommodated while orthogonal to each other, and a retainer having a pinion gear accommodating groove formed therein so that the pinion gear is rotatably received, In particular, a rack that meshes with the teeth of the pinion gear is formed directly at the inner end of the 'V'-shaped groove of the guide rail. Accordingly, it is possible to prevent a creep shape in which the retainer slides, maintain the precision of the cross roller bearing steadily, and reduce the downtime of equipment due to creep, thereby reducing maintenance costs. In addition, since the rack is directly formed inside the 'V'-shaped groove of the guide rail, maintenance is easy compared to when the rack is manufactured as a separate part and used. It is very easy to assemble the roller and pinion gear to the retainer, which can reduce the manufacturing cost and assembly time of the crossed roller bearing.