China ceramic bearing information

Ceramic bearings are developed for adjustment, heavy load, low temperature, and non-lubricated working conditions in harsh environments in the defense industry. They are a perfect combination of new materials, new processes, and new structures. Transforming it into civilian technology, ceramic ball bearings can completely cover all application fields of current precision, medium-speed and above all-steel bearings. The inner diameter, outer diameter and other dimensions of china ceramic bearing is all standard dimensions of P4, P5 and P6 grades of steel bearings formulated by the country. Due to the low thermal expansion coefficient, small heat transfer performance, and small elasticity of ceramic materials, attention must be paid to installation and coordination.

Zirconia full ceramic bearings have the characteristics of anti-magnetic electrical insulation, wear resistance and corrosion resistance, oil-free self-lubrication, high temperature resistance and high cold resistance, and can be used in extremely harsh environments and special working conditions. The ferrules and rolling elements are made of zirconium oxide (ZrO2) ceramic material, and the cage uses polytetrafluoroethylene (PTFE) as standard configuration. Generally, glass fiber reinforced nylon 66 (RPA66-25), special engineering plastics (PEEK, PI), stainless steel (AISISUS316), brass (Cu), etc.

Silicon nitride all-ceramic bearings: Silicon nitride all-ceramic bearing rings and rolling elements are made of silicon nitride (Si3N4) ceramic material. Generally, RPA66-25, PEEK, PI, and phenolic cloth bakelite tubes can also be used. Compared with ZrO2 materials, full ceramic bearings made of SiN4 are suitable for higher speeds and load capacities, as well as higher ambient temperatures. At the same time, we can provide precision ceramic bearings for high-speed, high-precision and high-rigidity spindles, with the highest manufacturing accuracy reaching P4 to UP levels.

china ceramic bearing can be used in various harsh working conditions such as high speed, high temperature, low temperature, strong corrosion, strong magnetic field, vacuum, high pressure and so on. The main characteristics of ceramic bearings are: high load-bearing capacity, good heat resistance, high limit speed, small friction temperature rise, small friction loss, high durability, good corrosion resistance, good insulation, low magnetic permeability, and good self-lubricating properties. .

Effect of temperature on china ceramic bearing life
When the working temperature of china ceramic bearing exceeds 120℃, the bearing parts will lose their original dimensional stability. Therefore, for bearings with working temperature higher than 120℃, you can make special requirements to us and choose bearings with special heat treatment.