Tapered roller bearings can bear large axial forces and function like thrust bearings. They can also manage large radial loads. Tapered bearings are an improvement on journal bearings. Tapered roller bearings don’t need to add frequent lubrication to avoid overheating and failure.
Tapered roller bearings avoid "differential scrubbing", the wear that occurs when a roller slides instead of rolls. This is achieved by matching the speeds of the various components inside the bearings. These components can wear out prematurely in other types of bearings because they move at different speeds.
Many industries use tapered roller bearings, especially those in the steel and mining industries. Tapered bearings are essential to axle systems, rolls, engine motors, gear boxes, and reducers. They function best in medium-speed, heavy-load applications.
The rollers incorporated in ZWA tapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.
A single row tapered roller bearing is typically adjusted against a second tapered roller bearing. By applying a preload, a rigid bearing application can be achieved.
Running-in period with reduced temperature peaks
Tapered roller bearings typically have a running-in period, during which a conventional design tapered roller bearing experiences a significant amount of friction, resulting in wear. This effect is noticed as a temperature spike. With ZWA tapered roller bearing designs, friction, frictional heat and wear are significantly reduced, provided the bearings are mounted and lubricated correctly.