Spherical plain bearings are not really considered rolling bearings, but plain bearings, where the load-bearing and guiding functions are carried out not by rolling elements but directly through sliding contact between the inner and outer ring.
Type designations:
GE.. (Spherical plain bearing)
GIL.. /GIR.. (Spherical plain bearings with internal thread)
GAL.. /GAR.. (Swivel heads with external thread)
GIKL.. /GIKR.. (Swivel heads with internal thread)
GAKL.. /GAKR.. (Swivel heads with external thread)
