Tapered bearings have inner and outer ring races between the rollers. The projection lines of the surfaces hit each other at the same point on the shaft. This design makes it possible to absorb radial and axial loads simultaneously.
The contact angle largely determines the axial load capacity of the bearings. The greater the angle, the higher the axial load capacity. The logarithmic contact profile ensures optimum distribution of stress on the roller contact. The lubricant in the roller is guided better thanks to the special design of the surfaces of the flange and the large roller. The benefits of this are the reduced sensitivity to misalignment and increased operational reliability. Tapered bearings are often used in sets and are the most commonly used bearings in a wheel bearing ring. All commercial aircraft take off and land using wheels mounted on tapered bearings.