Activity

Reply by mlenz

I am the author who has patented the technology that is an alternate way to assess and provide a correction to wind turbine rotor mass...

Reply by Bill Kilbey

This is the followup from a post I did a few months ago. I may have just solved a VFD/fluting issue for a customer by uncoiling the VFD...
Bill Kilbey

Reply by Big J

I had a conversation months ago with one of our electricians, if I understood him correctly the reactors, are different than the...
Big J

Reply by John from PA

Big J posted: Anyone have any experience with these to solve fluting issues? http://www.coolblue-mhw.com I've seen them but never...
John from PA

Reply by Jim Thomas

6/. Measure vibration in 3 directions at all 4 Bearings. Shut fan off, lock out, Mark coupling with paint marker, unbolt coupling and...
Jim Thomas

Reply by Jim Thomas

4/ Based on your Spectrums, I would replace the Fan Bearings again. Continue to "Trend" the Fan Bearings until you reach an optimum time...
Jim Thomas

Reply by Timol

Three faults 1/Soft foot 2/ Alignment 3/Rotor Balance

Reply by Big J

Anyone have any experience with these to solve fluting issues? http://www.coolblue-mhw.com
Big J

Reply by rgf12

Once again John is right on the issue. In addition to the nuts and bolts of the bearing specifications there are numerous studies on...
rgf12

Reply by Brian Biby

Ismail, Ok, I will stop presenting the contact angle/bpfo idea as the source for your 208 Hz vibration. I do hope you do find the...

Reply by İsmail AYDOGAN

Hi, I talk with my friend for confirmed my knowledge who work with bearing manufacturer in Turkey. this is deep groove ball bearings,...

Reply by mmdylmz

Ismail Bey, let make it easy. if possible you may perform run-up/run down test (collecting spectra during run down preffered). So you...

Reply by Shaon

Thank You Kishore. I too have the same opinion. Let us see what happens after the bearing and plummer block clearance has been reduced.
Shaon

Reply by Brian Biby

Hello Ismail, First, if we want to try to really determine fault frequencies, we need the actual motor turning speed at the time of vib...

Reply by İsmail AYDOGAN

12289 rpm screw compressor app distance 50 mt , but 204.8 Hz. BPFO 4.09 app 230.5 hz. SKF 6220 C3

Reply by Jim Thomas

Just curious, how far away from the motor is the VFD. Also, do you have any pictures of the installation. What is the motor HP?
Jim Thomas

Reply by Jim Thomas

Can you send some pictures of the fan and confirm the bearings you installed. bearing manufacturer and bearing numbers. Thanks
Jim Thomas
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