The shaft of the machine tool parts, especially the spindle, general rolling bearing NSK bearing  or sliding assembly into one, and with high speed rotating, sometimes cause high quantity of heat. If this phenomenon is not promptly eliminate, will lead to bearing overheating, and machine part temperature and produce hot deformation, serious worsened spindle and tail frame with different sizes, which not only affects the precision and machining precision machine tool itself, and the bearing will burn out.

Rolling bearing heating FAG causes and elimination method

(1) cause: bearing low accuracy

Method: choose provisions of the precision grades NTN bearing.

(2) cause: spindle bending or box different hole heart

Methods: repair spindle or box.

(3) cause: belt too tight

Methods: to properly adjust the belt reasonable.

(4) cause: bad lubrication

Methods: INA bearing choose provisions brand of lubricating material and cleaned properly.

(5) cause: assembly quality is low

Methods: to improve the quality of assembly.

(6) cause: shell bearings inside run laps

Methods: to replace imported bearing and related worn parts.

(7) axial force too big

Methods: clean, reset sealing mouth ring gap between 0.2 ~ 0.3 mm requirements, correct balance hole diameter and the check impeller static equilibrium value.

(8) bearing damage

 
Methods: to replace bearing.



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