>> P.69
69ForR-1560X13KK,theaboveformulawhentheballorbitalvibrationrotatestheinnerringat1800min-1is×1×0=11Hz.1-2.810.21fa=Whentheballmutualerrorincreases,therotationdirectionvibrationincreasescomparedtonormalstatus.(Figs.15-1,15-2)Example2:ForR-1560X13KK,whentheouterringracewaygroovedeformationandinnerringracewaygrooveshapebecomehexagonal,heptagonal,oroctagonal,theamplitudeatthevibrationpositionfoundwiththeaboveformulaisseentoincrease.(Figs.15-3,15-4,15-5,15-6)•ExamplesofanalysisviaformulaExample1:Vibrationduetoinnerringracewaygroovewavemotion(Fe)Vibrationduetoouterringracewaygroovewavemotion(Ff)Axialdirectionvibration(Fft)Radialdirectionvibration(Ffr)Vibrationduetoballsurfacewavemotion(Fg)Axialdirectionvibration(Fgt)Radialdirectionvibration(Fgr)nZFanZ(Fr-Fa)Fft±Fr2nFcFgt±Facos2α0FrDpwDw-DwDpw21ZFaZ(Fr-Fa)Ballrotationvibration(Fc)Ballpassagevibration(Fd)cosα0Fr1+DwDpw21Ballorbitalvibration(Fa)Retainerrotationvibration(Fb)SameasFa•Formulaforouterringrotation
| < 
| 
> | 
>>
