Spherical plain bearing is a kind of special structure bearing.It’s build-up by a outer sphere of inner ring and a inner sphere of out ring.It can be submitted to high load.According to its different types and structures,it can be submitted by the radial load and axial load or both of them together.Due to the composite material on the outer sphere of inner ring,this kind of bearing can be maintenance-free.It work in low speed pendulum motion,and also can work in steeve motion at prescript angle.It still work when the shaft and shaft casing pore are at non-concentricity.

Maintenance-free spherical plain bearing is apply for water conservancy and professional machines etc.