thrust bearing temp

[cs pal]

what is reason if out of two temperature probe of thrust bearing only one is increasing from 74 deg c to 94 deg c with an increameant of 1 deg c per day this thrust bearing is in inactive side of the male rotor of an screw compressor which is in steady state.any guess?
cuz during steady state inactive thrust bearing shall not get the load

[constovich]

What are the active side temperatures doing? How is thrust displacement looking? What are vibration readings on that sides nearest bearing doing?

I could imagine this being many things - from that side receives oil cast off from a now hotter active shoe all the way to the building heating system is blowing hot air on that detector. There is definately more information that is needed before anyone can answer about this.

[anewton]

I also agree that you should be checking the rotor axial position to determine if the rotor is running counter and so loading up the inactive bearing. Another possibility is en electrical problem. Does the machine have a history of elecrical problems (electrostatic or electromagnetic discharge)?