Where self-alignment is called for

âž” fig ). The forces acting on thebearing may be static or may occur when the bearing makes oscillating orrecurrent tilting and slewing move- ments at relatively low speeds.The advantages inherent in the de-sign of spherical plain bearings manufacturer mean that in practice• errors of alignment or angular mis-alignment do not influence bearing life• deformation of surrounding compo-nents in operation has no effect• edge stresses and excessive stress-ing of adjacent components do not occur• operationalreliability of lightweightconstructions is enhanced• reasonably wide manufacturingtolerances allow the use of cost- favourable welded constructions

Spherical plain bearings

Spherical plain bearings are standard-ized, ready-to-mount mechanical com- ponents thatare self-aligning and en- able multi-directional alignment move- ments to be made. The inner ring has a sphered convex outside diameterand the outer ring a correspondingly sphered but concave inside surface (
Misalignment is not a problem forspherical plain bearingsOperational reliability is high even whena design is made more compact – edgestresses and overloading donot occur 1 Fig 1 Spherical plainbearing 1 Outer ring2 Sliding contactsurfaces3 Seal4 Inner ring 5 Lubrication hole6 Lubrication groove 1234 56 4