Spherical Plain Bearings

Spherical Plain Bearings

Spherical plain bearings consist of outer ring, sliding contact surfaces, seal, inner ring, lubrication hole, lubrication groove.


Introduction to spherical plain bearings

Spherical plain bearings are bearings that allow for angular misalignment and some sliding along the bearing surface. They consist of a bearing surface and a mating surface, both of which are spherical or partially spherical. The bearing surface is often made of steel, while the mating surface is often made of bronze or polyester. Spherical plain bearings are commonly used in various applications, including automobiles, aircraft, and industrial equipment.


Spherical plain bearing is standardized, ready-to-mount mechanical components that can enable multi-direction, self-aligning movements. The inner ring has a spherical convex in outside diameter, while the outer ring has correspondingly concave in inside diameter. They are especially suitable for the place with axial angle alignment error existing between axle and bearing housing and at lower sliding speed sites with reciprocating inclination and oscillation.

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