Thrust roller bearing
Thrust roller bearings are used to bear axial load, axial load and radial joint load, but radial load should not exceed 55% of axial load. Compared with other thrust roller bearings, this kind of bearing has lower friction coefficient, higher rotating speed and better self-aligning performance.
Type 29000 roller bearing for asymmetric spherical roller, can reduce the roller and the raceway in the work of sliding and roller length, diameter, and roller number, high load capacity, usually by oil lubrication, individual low speed can be used for grease lubrication. In design selection, priority should be given to selection;
The 80000 type cylindrical roller thrust bearing, 90000 thrust tapered roller bearings and thrust needle roller bearings AXK type, can withstand a one-way axial load, axial load capacity than the thrust ball bearings are much larger, and rigidity, occupies a small axial space.
Thrust cylindrical roller bearings and thrust tapered roller bearings are suitable for low speed occasions, and thrust cone roller bearings have slightly higher rotational speed than thrust cylindrical roller bearings. Thrust cylindrical roller bearings belong to separate bearings, which can only bear one-way axial load and slight impact, and can restrict axial displacement of shaft (or shell) in one direction, so it can be used as one-way axial positioning. But its carrying capacity is far greater than thrust ball bearings. Roller rolling, the roller ends of lines at different speeds, the roller raceway in the ring sliding inevitably arise, therefore, such bearing limit rotational speed is low thrust ball bearings, usually only for low speed applications.
Standard designed thrust cylindrical roller bearings are made of metal solid cage, and other type or material holder can be used according to user's requirements. Thrust tapered roller bearings can only withstand one-way axial load, can limit the axial displacement of bearings, so it can be used as one-way axial positioning. Compared with thrust cylindrical roller bearings, the bearing capacity is large, the relative sliding is small, but the limit speed is low.