quote:are you sure 0.0058mm is the run-out tolerance? it is very tight imo
quote:The article you site is talking about mid-span rotor bow not allowable tolerances at bearing journals and/or probe target areas.
quote:I guess these 3 references should be adequate to conclude that probe landing area TIR tolerance is not to be mixed up with rotor full runout assessment.
quote:Must be an echo...
quote:are you sure 0.0058mm is the run-out tolerance? it is very tight imomaximum readout is one thing, how about the shape of the rotor based on the full (along the shaft) max runout/angle readings? maximum readout is one thing, how about the shape of the rotor based on the full (along the shaft) max runout/angle readings? ...
quote:The writer states the obtained runout readings (figure 1 : Shaft max runout is 1 mil and impeller eye max runout is 3 mils) are WELL WITHIN OEM tolerance.
quote:Where did you get these max runout values?
quote:"Though balancing is probably the simplest aspect of turbomachinery maintenance and reliability, many problems have occured due to inexperience, oversights, and lack of sound judgement when rotors are assembled and shop balanced."