A bearing unit (30) is provided with at least one ring of rolling bodies (32, 33) and at least one cage (39, 40) for holding the rolling bodies (32, 33), the cage (39, 40) having a cage bar (44), a plurality of circumferentially spaced cage arms (43) extending from one side of the cage bar (44), and a plurality of partially spherical cavities (45) for holding the rolling bodies (32, 33); a contactpoint (41) between the rolling bodies (32, 33) and the cage (39, 40) is located in the vicinity of the polar region (332) of each rolling body (32, 33). For each rolling body, a minimum number of contact surfaces (41) for holding the rolling bodies (32, 33) in the direction of rotation of the bearing and ensuring contact only in the polar region is equal to two, i.e. an upper contact surface (41') and a lower contact surface (41'').
一种轴承单元(30),设置有至少一圈滚动体(32、33)和用于保持滚动体(32、33)的至少一个保持架(39、40),保持架(39、40)具有保持架条(44)、从保持架条(44)的一侧延伸的在周向上间隔开的多个保持架臂(43)以及用于保持滚动体(32、33)的多个部分球面形的腔(45);滚动体(32、33)与保持架(39、40)之间的接触点(41)位于每个滚动体(32、33)的极地区域(332)附近。对于每个滚动体,用于在轴承的旋转方向上保持滚动体(32、33)并且确保仅在极地区域中接触的接触表面(41)的最小数量等于两个,即,一个上接触表面(41’)和一个下接触表面(41”)。
Bearing unit with cage
具有保持架的轴承单元
2021-02-02
Patent
Electronic Resource
Chinese