Spherical Plain Bearings

Spherical Plain Bearing
A spherical plain bearing is a type of mechanical bearing used to accommodate rotating or oscillating movement between two components. It consists of two essential components: an inner ring and an outer ring, both of which have spherical surfaces. The inner ring is usually attached to the shaft, while the outer ring is attached to the housing or the structure. The spherical shape of the bearing allows it to tilt and rotate, compensating for any misalignment between the shaft and housing.

Features and benefits:
  • Misalignment accommodation
  • Load-bearing capacity
  • Support both radial and axial loads
Item Code Inner Diameter Outer Diameter Width Inner Ring Width Outer Wing Angle of Tilt Dynamic Load Rating Static Load Rating Material End Type Mass
d D B C C0 PU m
mm ° kN kg

Mining & Construction
Food Processing Machinery


Q: Can plain bearings operate without lubrication?

While some self-lubricating plain bearings can operate with minimal lubrication, proper lubrication is generally recommended to ensure optimal performance and longevity.

Q: Can plain bearings handle heavy loads?

Yes, plain bearings are known for their high load-carrying capacity, especially in applications with heavy loads and low speeds.

Q: How do plain bearings compare to rolling element bearings?

Plain bearings have a simpler design with sliding surfaces, are generally more cost-effective, and are suitable for certain applications where low-friction sliding is advantageous.