Please tell me about the vibration value of motor bearings.
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The motor speed is 3000. As measured by the hand-held vibration meter in the picture, the acceleration is 67m/s?, the speed is 3cm/s, and the displacement is 500μm (the value jumps back and forth and is not stable). There is no problem with the vibration meter.
Generally, we use mm/s as the unit.
3cm/s？ Are you sure the unit is correct? If this happens, the vibration will be quite small.
It doesn't feel much vibration when touched by hand.
I forgot about the power, it is a multi-stage feed water pump with a flow rate of 160 tons and a rotation speed of 3000
Is it because vibrations with a relatively high frequency are insensitive to human hands? High frequency also makes the displacement gear measurement inaccurate?
Yes, the unit is centimeters when the speed is reached.