Bi -arc gear formula slewing bearing

The utility model discloses a bi -arc gear formula slewing bearing, it includes outer ring gear, the rolling element, the spacing block, the slewing bearing inner circle, sealed skin, block up and the taper pin, be provided with the raceway between outer ring gear and the inner circle, the rolling element, the spacing block sets up in the steel ball raceway, seal up through sealed skin outer ring gear and inner circle joint portion, in the mounting hole of the rolling element that the jam circled including setting up, be plugging hole, be provided with the taper pin hole and will block up by the toper on blockking up and circle including fixed, the gear flank profil of outer ring gear is bi -arc shape. The utility model provides a bi -arc gear formula slewing bearing, carries high tooth wheel transmission efficiency, carries high tooth wheel bearing capacity, avoids the under cut, improves slewing bearing's comprehensive properties. 本实用新型公开了种双圆弧齿轮式回转支承，它包括外齿圈、滚动体、隔离块、回转支承内圈、密封皮、堵塞和锥销，外齿圈和内圈之间设置有滚道，滚动体、隔离块设置在钢