Bearing retainer materials for bearing the influence of operation

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(1) on the cage material general requirementsslewing ring bearing
1) with low hardness and high wear resistance, although high hardness material abrasion resistance is hig her, but if use high hardness materials cage, can wear rolling body, give a rotating performance any adverse effects, and even produce "looping phenomenon".
2) due to the cage under repeated tensile and compressive stress, so the requirement has higher fatigue strength; It is necessary to elasticity and toughness, Resistance to centrifugal force.
3) cage light weight, use density small material, in order to make bearing friction loss is small, can ease rolling element in and out of the impact load.
4) plastic processing and machining performance is good; Have enough rigidity and flexibility.grinding spindle
5) ring and rolling body between the small friction coefficient.
6) on the chemical stability, is not easy to rust.
(2) to keep frame material additional requirements
1) the surface has can embellish sex, that can be attached or storage lubricant;roller bearing co
2) thermal conductivity, heat faster, Heat capacity is big, heat resistant,
3) has certain vibration absorption ability, is not easy to produce resonance with other parts,
4) is not easy to produce noise.