At present, the role of the cage in the rolling bearing is beyond the keep, isolation, and guides the role of the normal rotation of rolling element in the development of new cage lubrication. Work in special media, such as high-speed bearings, bearings, self-lubricating bearings, and once lubrication long life bearings and so on.

As bearing speed increases, the density of the metal material cage can no longer meet the requirements of the bearing, while the density of only metal 1/4 to 1/8 wear, earthquakes, magnetic, radiation resistance, corrosion resistance, low the unique advantages of the friction, and plastic, into the ranks of the rolling bearing cage materials. Phenol cloth laminated wood density, high mechanical strength, good machining performance, the performance of heat resistance and oil absorption, permeability, has been widely applied to the inner diameter of200mm, angular contact ball bearings cage. Such as high-speed grinding head bearings, machine tool bearings, instrument bearings, gyro bearings, turbine bearings, turbocharger bearings and so on phenol cloth laminated wood cage, dn value can be up to 12 × 106mm r /min.

Cage occasions, unable to meet the host requirements for metal and plastic cage showing special advantages. If the bearing does not allow the use of lubricant liquid oxygen (-183 ° C), equipped with a 100kg axial load on stamping steel cage deep groove ball bearings 6204, 10000r/min operating under 16min is burned, while the production of glass fiber reinforced PTFE plastic cage angular contact ball bearings, the friction torque, still no increase in axial load 100kg 20000r/min running 20h. Molybdenum disulfide, PTFE, glass fiber modified polyimide bearing cage, oil-free work in a vacuum radiation has been applied to Apollo. Porous oil-bearing cage, polyimide, long-life bearings in the gyroscope, the porous oil phenol laminated cloth material to maintain aircraft in Telstar institutions bearings, polyimide cage in the high-speed dental drill bearing, glass fiber reinforced poly amide 66 cage in a car gear box, differential gear box, clutch and wheels, pumps and mine delivery device, the use of effects are very good.