Self-aligning Roller Bearing

A self-aligning roller bearing has two rows of rollers, a common outer raceway with a spherical surface and an inner raceway inclined at an angle along the bearing axis. The center point of the sphere in the outer raceway is on the bearing axis. Therefore, bearings, automatic centering, and insensitive shafts relative to the housing can, for example, cause misalignment due to shaft deflection. Spherical roller bearings are designed to withstand heavy radial loads and axial loads in two directions.

influence factor

The performance of bearings depends not only on the load or speed level. There are many other factors that contribute to the performance of bearings. To a large extent, the performance is influenced by the geometric shapes of rollers, raceways, and cages, heat treatment, as well as the surface smoothness of all contact surfaces. The main factors affecting the performance of SKF spherical roller bearings include, but are not limited to:

Symmetric roller

Self adjustment of symmetrical rollers provides optimal load distribution along the length of the rollers. This emphasizes the extension of the service life of bearings under low load conditions.

Roller tolerance

The manufacturing of spherical roller bearings has extremely strict tolerance dimensions and forms for the rollers. Each roller in the set has almost the same size and shape as the other rollers. Optimize the load distribution and maximize the service life of roller bearings.

Roller profile

The roller configuration file determines the stress distribution in the contact area between the roller and the raceway. The special shape distributes the load more evenly along the drum and prevents stress peaks at both ends of the roller, extending the service life of the bearing.