Injection to keep the ranks of the frame into the rolling bearing
With the increase of imports bearing speed, high density metal material bearing cage can not meet the requirements, and the density of the metal is only 1/4 to 1/8, wear-resistant, shock, anti-magnetic, radiation-resistant, corrosion resistance, and other unique advantages of low friction plastic, into the ranks of rolling bearings cage material. Phenolic cloth laminated wood density, high mechanical strength, good machining performance, there is a certain degree of heat resistance temperature and suction, permeability and other properties, it has been widely applied to the inner diameter of 2 ~ 200mm angular contact ball bearing cage. Such as high speed grinding bearings, machine tool bearings, instrument bearings, gyro bearings, turbine bearings, turbocharger bearings, adopted phenolic cloth laminated timber cage, where dn value can be up to 12 × 106mm r / min.
Metal cage unable to meet hosts requirement, plastic cage showed special advantages. The lower bearing does not allow the use of lubricants such as liquid oxygen (-183 ℃) in the work, equipped with stamping steel cage deep groove ball bearings 6204 at 100kg axial load, 10000r / min running 16min Jibei burned, and PTFE with glass fiber reinforced plastic production cage angular contact ball bearings, axial load after 100kg of, 20000r / min running 20h, still no increased friction torque.
Molybdenum disulfide, PTFE, glass fiber-modified polyimide as bearing cages, no oil lubrication can work under vacuum radiation has been applied to the Apollo spacecraft. Porous oil-polyimide cage on gyro long life bearings, porous oil-phenolic cloth laminated material on the bearing retainer communications satellite agencies, polyimide cage on high-speed dental drill bearing, glass fiber reinforced polyethylene amide 66 car holder on the gear box, differential gear box, clutch and wheels, pumps and mine conveying means, using the results are very good.
Metal cage unable to meet hosts requirement, plastic cage showed special advantages. The lower bearing does not allow the use of lubricants such as liquid oxygen (-183 ℃) in the work, equipped with stamping steel cage deep groove ball bearings 6204 at 100kg axial load, 10000r / min running 16min Jibei burned, and PTFE with glass fiber reinforced plastic production cage angular contact ball bearings, axial load after 100kg of, 20000r / min running 20h, still no increased friction torque.
Molybdenum disulfide, PTFE, glass fiber-modified polyimide as bearing cages, no oil lubrication can work under vacuum radiation has been applied to the Apollo spacecraft. Porous oil-polyimide cage on gyro long life bearings, porous oil-phenolic cloth laminated material on the bearing retainer communications satellite agencies, polyimide cage on high-speed dental drill bearing, glass fiber reinforced polyethylene amide 66 car holder on the gear box, differential gear box, clutch and wheels, pumps and mine conveying means, using the results are very good.