Plane thrust bearing refers to the high axial load that can be obtained in a very small space. It is generally used in the working environment with excessive axial load. The structure is mainly composed of three parts: upper plate, lower plate and middle retainer.

I. Plane thrust ball bearing

This structure is the most common kind of plane thrust bearing, and its main characteristics are: the middle retainer is a steel ball structure, and the retainer skeleton is of iron and brass type (iron structure is more). In addition, the upper and lower pieces are also common with grooves, without grooves, the use of less.

Two, plane thrust needle roller bearings

The biggest characteristic of the plane bearing of this structure is that the middle retainer is of needle roller structure, and the upper and lower pieces do not have grooves. In addition, the plane thrust bearing of this structure has low rotational speed, but it can bear higher axial load.

3. Flat thrust bearing with enclosure

The biggest characteristic of the plane thrust bearing of this structure is that the whole bearing outer ring has a cover shell, whose main function is to prevent dust. In addition, this type of thrust bearing, the retainer is generally not with, so that more balls and needles can be put in, so as to improve the axial load. And because of the cover shell, there is no separation of the upper and lower pieces, which is more convenient for the installation of bearings.