Thrust Roller Bearing
>>Structure & Characteristic
According to the structure, the thrust roller bearing is divided into:
- thrust cylindrical roller bearing;
- thrust tapered roller bearing;
- thrust spherical roller bearing;
- thrust needle bearing;
1. Thrust cylindrical roller bearing
According to the different number of roller groups, the bearing is divided into single row cylindrical roller bearing and double row cylindrical roller bearing. Single row cylindrical roller bearing can bear single direction axial load and limit one direction axial displacement, double row cylindrical roller bearing can bear two-way axial load and limit two directions axial displacement.
2. Thrust tapered roller bearing
The inner and outer raceways are tapered, and the rolling body is also tapered roller. The extension lines of the three meet at the same point of the bearing axis line. The motion friction is smaller than other thrust roller bearings.
3. Thrust spherical roller bearing
Because the load action line and axis form a certain angle, this kind of bearing can bear the axial and radial load at the same time, and can be used in the extremely heavy load situation, the allowable speed is also higher, the thrust self-aligning roller bearing has better self-aligning performance, but the allowable angular error decreases with the increase of the actual load applied to the bearing.
The thrust roller bearing is mainly used in heavy-duty machine tools, high-power marine gear boxes, oil rigs, vertical motors and other machinery.