Seeking help with MCL compressor rotor bending issue
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It’s a new MCL526; when measuring the levelness at both shaft ends, the levels are elevated on both ends – one end is 2 notches higher and the other is 10 notches higher. The same situation occurs after rotating the unit by 90 degrees and 180 degrees. Experienced equipment experts, please give some advice: how can the deflection of such a small rotor be so large? Is it normal or not?
Using a level to determine rotor bending accuracy is inaccurate; it is better to use a lathe or boring machine for calibration.
The rotor is not permanently bent, and its runout is very low; however, the horizontal positions at the two shaft diameters are significantly opposite to each other. We can only consider the deflection.
The runout value should be checked using a dial indicator