Thrust self-aligning roller bearings are roughly the same as self-aligning roller bearings. The raceway surface of the seat ring is a spherical surface centered on a point consistent with the central axis of the bearing. The rollers of this type of bearing are spherical, therefore, they have automatic self-aligning function and are not very sensitive to coaxiality and shaft deflection.
Unlike other thrust bearings in the sample, this type of bearing has a very large axial load capacity. While bearing axial loads, it can also withstand several radial loads, but the radial load must not exceed 55% of the axial load.
As long as the load P and P0 do not exceed 0.05C0 and the shaft rotates, the bearing is allowed to have the centering angles listed in the table below.
Bearing diameter series, self-aligning angle, bearing diameter series, self-aligning angle, 200 series, 1 °~1.5 °, 300 series, 1.5 °~2 °, 400 series, 2 °~3 °. Small values are suitable for larger bearings, and the allowable self-aligning angle will decrease when the load increases.
Oil lubrication is generally used during use.
Thrust tapered roller bearings can only withstand unidirectional axial loads and can limit the unidirectional axial displacement of the bearing, so they can be used for unidirectional axial positioning. Compared with thrust cylindrical roller bearings, it has a higher load-bearing capacity and smaller relative sliding, but has a lower limit speed.