Radial spherical plain bearings have an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered but concave inside surface.

The radial spherical plain bearing is a sliding bearing that can rotate and swing at any angle. It consists of an inner ring, an outer ring and a spherical sliding surface. It is suitable for occasions that bear radial loads and smaller axial loads.
The working principle of the radial spherical plain bearing is to use the spherical sliding surface to produce a self-alignment effect when rotating and swinging, so as to ensure that there is always a point contact between the inner and outer rings. This can avoid stress concentration and wear caused by inaccurate installation or shaft bending.

Advantages:
It can adjust the angle within a large range, improving the flexibility and reliability of mechanical operation. Generally, the radial spherical plain bearing can adjust the angle between 15° and 30°. This can adapt to various installation errors, deformations, deviations, etc. .
It can work at higher speeds because the spherical sliding surface has good lubrication conditions and low friction coefficients. Generally, the radial spherical plain bearing can reach more than 1,000 revolutions per minute.
It can work under conditions of large temperature changes or large temperature differences because it has good thermal stability and fatigue resistance. Generally, the radial spherical plain bearing can work normally between -40℃ and +150℃.
It can work in harsh environments because it has good dustproof, waterproof, anti-corrosion and other properties. Generally, radial spherical plain bearings can use sealing structures or special materials to prevent dust, moisture, acid and alkali from entering.

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