Maintenance Method Of Sliding Bearing
Gluing bearing overheating, excessive load, improper operation or temperature control system
1.In the movement, such as the discovery of bearing overheating, should immediately stop the inspection, it is best to continue to run the rotor at low speed, or continue to supply oil for some
time until the bearing cold down so far.
2.To prevent lack of oil or oil mixed with impurities, and the rotor is not installed.
3.Gluing damage to the lighter bearing pad can be used to repair the method to eliminate,
continue to use.
Fatigue rupture due to uneven vibration caused by the shaft deflection and edge load, overload,
etc, causing the bearing babbitt fatigue fracture. Bearing repair installation quality is not high:
1.To improve the installation quality, reduce bearing vibration.
2.To prevent partial load and overload.
3.The use of suitable babbitt and the new bearing structure.
4.Strict control of bearing temperature rise.
Wear and scratches are mixed with impurities, foreign matter and dirt. Repair method is wrong,
the installation is not correct. Use improper maintenance, strict quality control:
1.Cleaning the journal, oil, oil filter, and replace the clean quality requirements of the
2.Coupled with the scratch after the bearing or the new pad.
3.If found to be wrong, should be timely correction
4.Pay attention to maintenance quality.
As the bearing structure is irrational (the oil on the bearing is unreasonable), the vibration
of the shaft, the formation of steam bubbles in the oil film, the steam bubble burst, the bearing
surface of the bearing surface vacuum, causing the peeling off the small pieces of cavitation
1.Increase the oil pressure.
2.To improve the bearing pad trench, groove shape, modify the edge of the groove or shape to
improve the shape of the oil film streamline.
3.To reduce the bearing clearance, reduce the axis of shaking.
4.For more suitable bearing material.
Electrification due to poor insulation or poor grounding, or produce static electricity, in
the journal and the bearing between the formation of a certain voltage, through the journal and the
oil film between the bearing and produce spark, the bearing into the pit:
1.Check the insulation of the machine, with particular attention to some protection devices
(such as thermal resistance, thermocouple, etc.) whether the insulation is intact.
2.Check the machine grounding.
3.If the damage is not serious after the erosion, you can scratch pad.
4.Check the journal, if the journal produced on the electrical corrosion Ma pit, should be
polished to remove the jaw.