The spherical plain bearing is a kind of spherical sliding bearing. Its sliding contact surface is an inner spherical surface and an outer spherical surface. It can rotate and swing at any angle
during the movement. It is made of various special processing methods such as surface phosphating, frying(stress fracture opening), padding, spraying, etc. The spherical plain bearing has the
characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning and good lubrication.