Plane bearing for automobile steering mechanism

The utility model relates to the technical field of plane bearings, in particular to a plane bearing for an automobile steering mechanism, which is sleeved on a master pin, the upper surface and the lower surface of the plane bearing respectively abut against a front axle and a lower fork head of a steering knuckle, and the plane bearing comprises a lower oil seal and a sliding cover, the lower oil seal comprises a metal framework and a sealing layer wrapping the metal framework, the metal framework is a circular ring with the inner circumferential face bent downwards by 90 degrees and extending, and the sealing layer is provided with a first sealing lip on the inner circumferential face of the metal framework. And the sealing layer is sequentially provided with an inner flange, a sealing lip II and an outer flange outwards in the radial direction on the top surface of the metal framework circular ring. The sliding bearing is used for supporting the front shaft and abuts against the front shaft and the lower