Heavy duty self-adjusting roller bearings are roughly the same as self-adjusting roller bearings. The surface of the ring roller is a spherical surface centered on a point corresponding to the central axis of the bearing. The rollers of such bearings are spherical, so they have an automatic self-guidance function and are less sensitive to coaxiality and axis deflection.

Unlike other sturdy bearings in the sample, this bearing has a very large axial bearing capacity. Accepting the axial load, it can also withstand several radial loads, but the radial load should not exceed 55% of the axial load.

The bearing may have the centering angle shown in the table below, provided that the load P and P0 do not exceed 0.05C0 and the axis rotates.

Bearing diameter series, centering angle, bearing diameter series, centering angle, 200 series, 1°~1.5° series, 300 series, 1.5°~2° series, 400 series, 2°~3° series. Smaller values apply to larger bearings, and as the load increases, the permissible angle of self-steering decreases.

In the process of use, lubricant is usually used.

Tapered tapered roller bearing can only withstand one-way axial load and can limit the one-way axial displacement of the bearing, so it can be used for one-way axial positioning. Compared to sturdy cylindrical roller bearings, it has a higher throughput and less relative slip, but has a lower limit speed of rotation.