Hello all,
We are trying to troubleshoot a vibration issue with our motor-compressor drivetrain. The issue is that when we run a coast-down from 3600rpm down to the min speed, we get high amplitdue vertical vibrations (7mm/s RMS) at about 1500rpm and 2400rpm. Horizontal and axial vibration...
We have a sheet metal part with small [.125"dia]dimpled/extruded holes for thread engagement. We have a true position tolerance but our tooling engineers do not think that an irregular hole like this cannot be measured accurately and should not be given a true position tolerance. What do you...