The joint bearing is made of high-quality stainless steel raw materials in terms of raw material selection, and is processed as a whole by the production process without welds. It has a strong high protective shell, a plastic sprayed wear-resistant layer on the surface, and an overall anti-interference wall. The joint is also made of all stainless steel waterproof joints. Through the wear-resistant test of harsh environmental media, it is corrosion-resistant, rust proof and corrosion-resistant. It can operate stably for a long time and is durable. The joint bearing is easy to install and debug, with exquisite workmanship, high finish, high dimensional accuracy, and no potential leakage after long-term use. It is a bearing structure composed of an inner ring of an inner sphere and an outer ring of an outer sphere. It can rotate and swing at any angle during sliding. It is generally divided into: rod end joint bearing, radial joint bearing, hydraulic cylinder joint bearing, etc. Joint bearings are generally made by various special processing methods, such as surface phosphating, cratering, pad inlaying, spraying, etc., so that they have many advantages, such as large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning, good lubrication and so on.