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High Axial Vibration at Permanent Magnetic Generator Ball Bearing

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...?

RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing

(OP)
and the PMG is supported by 2 radial ball bearing.

zbiring

RE: High Axial Vibration at Permanent Magnetic Generator Ball Bearing

(OP)
axis represent date of measurement from 1(newest date of measurement) to 11 (older date of measurement)

thanks

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