What are the main uses of thrust ball bearings?
Although the thrust bearing installation operation is relatively simple, but there are still errors in actual maintenance, that is, the bearing ring and loose ring installation position is incorrect, the result of the bearings lost effect, the journal was quickly worn. The tight ring is mounted on the end face of the stationary member, i.e., the wrong assembly. Tight inner ring and shaft neck for transition fit, when the shaft rotates and drives the locking ring, and static parts surface friction, under axial force (Fx), there will be more than matched with the inner diameter of friction torque moment of resistance, leading to a tight ring and the shaft with forced rotation shaft neck wear intensifies.
Thrust roller bearings are divided into thrust cylindrical roller bearings, thrust roller bearings, thrust tapered roller bearings, thrust roller bearings, cylindrical roller thrust bearing is mainly used in oil drilling, making iron steel machinery. This kind of bearing thrust roller bearings are mainly used in hydraulic generator, vertical motor, propeller shaft, ship crane, extrusion machine. Tapered roller thrust bearing such bearing main use: one-way: crane hook, swivel oil rig. Two: rolling mill roll neck. The plane thrust bearing in the assembly mainly bear axial load applied widely.
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. 29000 stick bearing 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 the design selection, should be preferred; 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 the axial rigidity, small space occupation. Thrust cylindrical roller bearings and thrust needle roller bearings are suitable for low speed occasions, and thrust cone roller bearings have a higher rotational speed than thrust cylindrical roller bearings.
