Government's bearing cage commonly used materials

Bearing cage material which not only affect the bearing running stability, also affect greatly the service life of bearing, so the use of the bearing should be given due consideration in the selection of bearing frame material environment and features reasonable choice. Bearing cage according to process characteristics can be divided into stamping, frame system and injection molding etc. Often by cold stamping keep frame, Hot) Rolled low carbon steel plate, such as 10 ﹟ steel, has high strength, and can reduce the friction and wear by surface treatment and the inner stress caused by stamping process, more for small and medium-sized bearings. Car system maintains a common materials mainly include steel, brass, phenolic laminated tube, etc. Commonly used car steel cage 20 30 ﹟ ﹟ steel and steel materials, mechanical strength is better than punching cage, generally used for large size bearings or brass cage is not suitable for use, is suitable for the working temperature below 300 ℃; Car ZhiHuang copper brass HPb59 - cage commonly used materials 1 and bronze QAL10 - 3 - 1. 5, it is mainly used for small and medium-sized bearings, is suitable for the working temperature below 250 ℃; Phenolic laminated tube maintains a light weight, high radial tensile strength, used for high-speed bearing, is suitable for the working temperature below 120 ℃. Plastic cage is often made of reinforced nylon 66 material after mold has good strength, elasticity and slip resistance, can also in the case of lack of oil continues to work time, its working temperature 40 ℃ ~ 80 ℃, but under the condition of vacuum and the lubricant may cause corrosion, unfavorable use nylon cage.