High Axial Vibration at Permanent Magnetic Generator Ball Bearing
High Axial Vibration at Permanent Magnetic Generator Ball Bearing
(OP)
Hi guyz,..
I have problem with pemanent magnetic generator.
Our sistem is turbine (5500RPM)- Gearbox(output-1500RPM)-Generator-Exciter-Permanent Magnetic Generator.
Axial vibration at PMG is about 3-5 times radial direction (dominant at 1XRPM high speed gearbox=5500), PMG rotate at 1500RPM, with spectrum attached. we have replace the bearing and the is not any bearing cocked and nothing change in the amplitude.
is there anyone could help me...?
I have problem with pemanent magnetic generator.
Our sistem is turbine (5500RPM)- Gearbox(output-1500RPM)-Generator-Exciter-Permanent Magnetic Generator.
Axial vibration at PMG is about 3-5 times radial direction (dominant at 1XRPM high speed gearbox=5500), PMG rotate at 1500RPM, with spectrum attached. we have replace the bearing and the is not any bearing cocked and nothing change in the amplitude.
is there anyone could help me...?





RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing
several days ago overall trending was about 5 mm/s (p-p)
Thank You in advance
RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing
zbiring
RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing
I dont have the software license so I make an excel plot.
any suggestion greg..?
Thank You
RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing
thanks