thrust bearings, also known as flat plane needle roller bearings or thrust bearings, thrust bearing radial structure is compact, flat needle roller bearings with bore sizes and other types of load bearing capacity and the same, the diameter of the smallest diameter is especially suitable for restricted to the installation size of the supporting structure. Thrust plane Use different according to needle roller bearings can be used without inner ring of the bearing or needle roller and cage assemblies, this time to match the journal and the bearing surface and directly on the surface as a shell hole in the bearing. Outer rolling surface, as maintain the load capacity and operating performance and a ring bearing the same shaft or housing bore surface hardness of the raceway. machining accuracy and surface quality and surface should be similar roller bearing rings. Such bearings can only bear radial load. Plane thrust needle roller bearings with a needle by a flat or cylindrical roller and cage assemblies composed of flat washers. The main models: AXK / AX / AXW / NTA thrust needle roller and cage assemblies; K811/K812/K89 other thrust cylindrical roller and cage assemblies.