When the temperature of the cylindrical roller bearing rises, you must first determine whether there is an incorrect action. If the temperature is indeed rising, the following measures should be taken immediately:
(1) Check whether the cooling water pressure, water flow and piping system are normal. If the water pressure is low, it may be that the filter is clogged. If it cannot be processed in time, it can be shut down for processing. When it is confirmed that it can work, it can be put into use again.
(2) The oil pressure of the speed regulator should be checked. If the oil pressure is low, it may cause the cooling water hydraulic valve to close.
(3) Check whether the timken bearing has any abnormal noise, and detect whether there is any abnormality in the swing of the cylindrical roller bearing.
(4) Take an oil sample to observe whether there is any change in oil color, and conduct a test to see if it has deteriorated. If deterioration is confirmed, the machine should be shut down and replaced with new oil.
(5) Check whether the oil level in the oil gauge is normal. If not, check whether the oil tank drain valve is closed tightly. If it is closed tightly, the oil should be replenished. If the sealing gasket leaks oil, the machine should be shut down for treatment.
The performance of timken bearings in operation when production equipment is in a minimally damaged state without causing an accident is as follows :
(1) There are slight signs of rotational slippage on the inner or outer diameter surface of the bearing.
(2) Corrosion of bearing mating surfaces and working surfaces.
(3) There are scratches or indentations on the inner diameter, outer diameter, raceway, and rolling element surface of the bearing.
(4) The roller end surface is frictionally adhered to the rib surface.
(5) There is slight wear on the working surface of the bearing.
The status of a running Timken bearing after failure and damage, that is, accidental damage, is as follows :
(1) The cage is distorted, deformed and broken.
(2) The rolling elements are broken.
(3) Fatigue spalling occurs on the working surface of the bearing load area.
(4) The inner and outer rings of the bearing are cracked or broken axially.
(5) The outer ring of the bearing is cracked or broken radially or dropped.
(6) The inner and outer rings and rollers of the bearing are deformed, and the raceways form pressure pits.
