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What is the reason for increasing axial clearance in a Gas turbine?

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Question added by Mohammad Asif Aslam , Maintenance Manager/ Engineer , Mylo Group
Date Posted: 2016/12/24
david cordero
by david cordero , Technical Advisor , Siemens Venezuela

Axial clearance should be increased towards the thrust side of the bearing, to compensate for axial displacement of the rotor. If viewed as a screw, a rotating compressor will tend to advance towards the front (need to take in consideration the rotation and shape of its blades to determine which side it will travel to ). 

Muhammad Nadeem
by Muhammad Nadeem , Mechanical Technician , Hub power Station Ltd Pakistan

due to thrust bearing wear tear 

 

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