Semi-Hermetic Refrigeration Compressor Rotor Dynamic Balance | Overhaul Requirement for Rotor Assembly
Unbalanced rotor causes 34% of high vibration and bearing premature wear, xiteliduo Refrigeration Compressors introduces rotor balancing standard. Semi-hermetic refrigeration compressor rotor after repair must carry out dynamic balance test; balance grade not worse than G2.5. Piston refrigeration compressor does not rely on rotating rotor balance; its main vibration source is reciprocating piston movement. Cold storage refrigeration compressor rotor imbalance usually arises after motor winding burnout, rotor collision or long-term liquid slugging impact. Unbalanced rotor creates periodic centrifugal force, continuously impacting bearings and leading to shaft deflection and seal damage. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration compressor rotor dynamic balance, refrigeration balance grade G2.5, refrigeration rotor imbalance, refrigeration bearing premature wear, refrigeration compressor manufacturer, cold storage compressor motor overhaul, refrigeration compressor supplier
FAQ
Q1: What percentage of high vibration and early bearing wear come from unbalanced rotor? A: 34% of high vibration and premature bearing failures are induced by rotor imbalance. Q2: What balance grade is required for repaired semi-hermetic rotor? A: At least G2.5 dynamic balance grade. Q3: Why rotor balance is not the key for piston compressor? A: Primary vibration source is reciprocating piston motion instead of rotating rotor. Q4: What events will cause rotor imbalance? A: Motor burnout, rotor rubbing and repeated liquid slugging impact. Q5: What mechanical effect of rotor imbalance? A: Periodic centrifugal force, shaft deflection and continuous bearing impact load. Q6: Can rotor imbalance be fixed on site? A: No, dynamic balance needs professional balancing machine in factory. Q7: What are typical symptoms of rotor imbalance? A: Vibration increases with rotating speed, rising bearing temperature.
