1)Materials for rings and rolling elements
While the contact surfaces between the bearing rings and rolling elements aresubjected torepeated heavy stress,they must still maintain high rotationalprecission,therefore, the materials used for bearings rings and rolling elementsrequire the following characteristics:
●High rolling contact fatigue strength
●High hardness
●High wear resistance
●High dimension alstability
●High mechanical strength
The material used by our company is high carbon chromium bearings steelGCr15-GB/T18254 equivalent such as AISI 52100(USA), DIN100Cr6(Germany)JISSUJ2(Japan) and BS534A99(UK).
2)Materials for cages
The materials for cages must have strength towith stand rotation at load andshock load. Low frictional efficiency light weight and be able to with stand operation temperature.
The material used in rib boncagesor crown cages is 08F or SPCC pressed.
It is chemical composition is shown for extra-high speed application. Plastic cages such as glass reinforced poly mideareused.
These plastic crown have the advantages of low torque,long grease lefe and lownoise, etc.
3)Vibration and noise
●The measuring parameter of vibration adopted by RNB is the vibration acceleration of vibration velocity.
● The measuring units and measuring method arespecified by JB/T5314 and JB/T5313 In the process of measuring vibrationstrictly controlled noise by using acoustics.
Deep groove ball bearings
