Spherical plain bearings or bushings are metal-on-metal bearings consisting of a spherically ground inner ring housed in a mating outer ring without any rolling elements. While all plain bearings are precision ground and made from through-hardened steel, custom orders are available and can include special materials, clearances, surface finishes or configurations to accommodate unique applications.
The inner ring of JQB self-lubricating spherical joint bearing is made of copper alloy embedded solid lubricant. It has the advantages of oil-free lubrication, maintenance-free, high load-bearing, and long life. It can play an excellent role in special working conditions, such as underwater, high temperature, and vacuum, which can not be maintained by refueling. The outer ring material of JQB self-lubricating spherical joint bearing is made of high hardness steel (HRC: More than 58) quenching, phosphating, polishing (special needs, the outer ring arc surface hard chromium plating), polishing, inner ring for high strength copper alloy matrix, and the ball table set with high orders, graphite and MoS2 composite solid lubricant, in use process, through the friction heat makes the solid lubricant throughout the whole contact surface, and tiny particles similar to oil film lubrication film formation, But compared with the oil film, it has the advantages of long lubrication effect, no loss of lubricating materials and less wear and tear of lubricating objects. Performance range: JQB spherical joint bearing can withstand large load. Depending on its type and structure, it can bear radial load, axial load, or a combination of radial and axial loads. Because the outer sphere of the inner ring is inlaid with composite material, the bearing can produce self-lubrication in operation. Generally used for low-speed swing movement, and low-speed rotation, can also be in a certain Angle range for inclined movement, when the supporting shaft and shaft shell-hole is not concentricity is large, it can still work normally. Self-lubricating plain bearings are used in water conservancy, machinery, and other industries
China Manufacturer with main products:bushing,self-lubricating bush,sliding bearing,copper bush
JQB bearing, Radial spherical plain bearing.
graphite copper spherical bearing
self-lubricating joint bushing
oilless radial bearing
Dalian Yiming Precision Machinery specializes in the production of JQB spherical joint bearings, graphite copper sleeve ball bearings, JDB-QJ oil-free radial bearings, self-lubricating joints.
The JQB articulated bearing consists of a JDB-1 spherical bearing and an outer ring. The outer ring is usually divided into two halves, axially or radially. The outer ring material is quenched with 45# steel and has a hardness of HRC4-~50.
The outer ring of the JQB joint bearing and the seat hole are H8/p6, and the fit of the spherical bearing to the shaft is H7/p7.
Common models: JQB-015, JQB-020, JQB-025, JQB-030, JQB-035, JQB-040, JQB-045, JQB-050, JQB-060, JQB-070, JQB-080, JQB-090 , JQB-100, JQB-110, JQB-120, JQB-130, JQB-140, JQB-150, JQB-160, JQB-180, JQB-200, JQB-220, JQB-240, JQB-260, JQB -280, JQB-300.