Thrust bearing is used to withstand axial and radial combined load,mainly consisting of axial load, but the radial load should not exceed 55% of the axial load. This kind of bearing usually with low friction coefficient, high speed, and has self-aligning performance.
The roller of 29000 series bearing is asymmetric spherical roller, can reduce the sliding of roller and the raceway in the work, and has feature of long rollers, big diameter, more rollers, high load capacity.  Thrust roller bearing usually greased by oil lubrication, individual low speed can be used for grease lubrication.  
80000 type cylindrical roller thrust bearing.
90000 type thrust tapered roller bearings and AXK type thrust needle roller bearings, can withstand a one-way axial load, axial load capacity much larger than the thrust ball bearings, and the axial rigidity, small space occupation. Thrust cylindrical roller bearings and thrust needle roller bearings are suitable for low speed applications. Thrust tapered roller bearings are slightly higher speed than thrust cylindrical roller bearings.


Thrust needle roller bearing
AXK
AXW
NTA  imperial series
NTB  imperial series
AS GS LA WS  thrust spacer
TRA/TRB/TRC/TRD, thrust spacer