>> P.70
LOGANBG0dBWTGHA1.0VRMS11HzLOGANBG0dBWTGHA1.0VRMS11Hz0dB-0600.0LINXHz100.000.0LINXHz100.00Fig.15-1NormalrotationdirectionvibrationFig.15-2RotationdirectionvibrationwhenballwavemotionmutualerrorislargeLOGANBG0dBWTGHA0.20VRMS102.3Hz0dB-060LOGANBG0dBWTGHA0.20VRMS77.7Hz0dB-0600dB-0600.0LINXHz200.000.0LINXHz200.00Fig.15-3Outerringracewaygroovedeformation(triangle)Fig.15-4Innerringracewaygroovehexagonfer=fet±fr162.3HzLOGANBG0dBWTGHA0.20VRMS0dB-060132.3HzLOGANBG0dBWTGHA0.20VRMS0dB-0600.0LINXHz200.000.0LINXHz200.00Fig.15-5Innerringracewaygrooveheptagonfet=nZ(fr-fa)Fig.15-6Innerringracewaygrooveoctagonfer=fet±fr701-4BearingSelection(15)Vibrationduetoforcedrotation
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