i am dealing with a RAW mill simple supported system fan 2500 kw motor with 990 r.p.m . The spectrum in DE bearing showing 1X with an amplitude 3.8mm/s overall vibration is 4mm/s in DE bearing in horizontal direction.
vertical: 1.2 mm/s
Axial: 1.4 mm/s
but at NON DE side bearing we are having 5mm/s overall vibration in horizontal direction. the spectrum in NDE bearing showing 1X with an amplitude 3.9mm/s .
vertical vibration is :1.8mm/s
Axial: 2.4 mm/s
by doing time wave form analysis we observed impacting in NDE bearing. but there is no impacting in DE bearing.
NDE bearing is SKF CARB bearing. So my question is can we perform Dynamic Balancing ??
if yes will we get satisfactory results?
Alignment was verified with SKF laser tool-41.
Phase at DE side bearing is 110 degree.