High-temperature bearings overheating occurs Cause
1. lubricated Cause: bearing grease inject too much, more than two-thirds of the bearing cavity space, because grease heat transfer efficiency is not high, resulting in poor heat dissipation bearings. When the oil change can be cleaned bearing grease fill space, the bearing cavity injection 1/3; if the daily run up the oil bearing cavity injection part 1/3 to 2/3 is appropriate.
2. Mechanical vibration Reason: the coupling concentricity less cause vibration, vibration and bearing pedestal bolts caused by insufficient rigidity caused by loose. Vibration bearing receive additional non-normal load, generate excessive pressure bearing heating. Coupling to strict alignment, strengthening to improve the bearing base, improve its stiffness; fastening bolt specified torque.
3. The assembly Cause: The bearing outer ring too tight deformed causing friction torque is too large. Workaround: bearing outer ring generally should not be too tight, this is because the rolling element bearing outer ring rolling moment less than slip torque.
4. Environmental factors: lack of sleep or interrupted cooling system, interior space is small unventilated, hot summers and high temperatures. Ensure that the cooling water flow, increase ventilation capacity, timely bearing cleaning oil change and maintenance prior to the summer season.
5. Operation reasons: because of the one-sided demand production, increase in line. Bearing overload. It should be cut to normal rated load.
6. The bearing inner ring cracks, excessive wear cage clearance exceeds the limit wear limits, rolling and other Tasikmalaya a serious flaw. The bearing scrap, updated with new bearings.
1. lubricated Cause: bearing grease inject too much, more than two-thirds of the bearing cavity space, because grease heat transfer efficiency is not high, resulting in poor heat dissipation bearings. When the oil change can be cleaned bearing grease fill space, the bearing cavity injection 1/3; if the daily run up the oil bearing cavity injection part 1/3 to 2/3 is appropriate.
2. Mechanical vibration Reason: the coupling concentricity less cause vibration, vibration and bearing pedestal bolts caused by insufficient rigidity caused by loose. Vibration bearing receive additional non-normal load, generate excessive pressure bearing heating. Coupling to strict alignment, strengthening to improve the bearing base, improve its stiffness; fastening bolt specified torque.
3. The assembly Cause: The bearing outer ring too tight deformed causing friction torque is too large. Workaround: bearing outer ring generally should not be too tight, this is because the rolling element bearing outer ring rolling moment less than slip torque.
4. Environmental factors: lack of sleep or interrupted cooling system, interior space is small unventilated, hot summers and high temperatures. Ensure that the cooling water flow, increase ventilation capacity, timely bearing cleaning oil change and maintenance prior to the summer season.
5. Operation reasons: because of the one-sided demand production, increase in line. Bearing overload. It should be cut to normal rated load.
6. The bearing inner ring cracks, excessive wear cage clearance exceeds the limit wear limits, rolling and other Tasikmalaya a serious flaw. The bearing scrap, updated with new bearings.
