Thrust ball bearings are separated type bearings, according to its structure is divided into i.e.one-way thrust ball and two-way thrust ball bearings. One-way thrust ball bearings can withstand a direction of axial load, two-way thrust ball bearings can withstand two directions of the axial load. They were unable to bear radial load. Thrust ball bearings and insert pads, due to the seat cushion structure of the spherical shape, angled installation is self-aligning bearing performance, can reduce the influence of installation error.
By a thrust ball bearing steel, a shaft and axial tight with a seat ring, steel shaft and seat ring in between. Can bear a direction of axial load, cannot bear radial load. Because of the axial load is evenly distributed in each ball, so large load capacity, But when the temperature, working, allow lower limit speed.
Thrust ball bearings can limit the radial and axial movement, but limited in one direction and shell of axial movement, therefore, such bearing and usually use a combination of deep groove ball bearings. When installed, axis and the axis of the housing holes, otherwise one must keep the stress concentration due to damage caused by bearing. In order to eliminate the undesirable phenomena, but all circle diameter and housing holes left by 0.5 ~ between 1mm radial clearance. Shaft centerline and housing supporting surface should guarantee the vertical shaft, are not allowed to lean and buckling, otherwise will due to load distribution non-uniform premature damage caused by bearing. To eliminate the tilt, axis bearing on the surface of all circles with elastic cushion supporting materials such as oil resistant rubber, leather, or the sphere of thrust ball bearings.
Thrust ball bearings are mainly applied in automobile, machine, etc.