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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> Bearing professor analysis: KOYO bearing "sense summary and processing strategy" Bearing professor analysis: KOYO bearing "sense summary and processing strategy"
KOYO bearings with adjustable clearance or non-adjustable clearance; they must be adjusted for axial clearance during installation (but some bearings with non-adjustable clearances do not require axial clearance); to compensate for the thermal elongation of the shaft at elevated temperatures Then ensure the normal operation of the KOYO bearing body. If the axial clearance is too small; the bearing transformation will be difficult and hot; even the KOYO bearing body will be stuck or damaged; then the copper rod and the hammer can be used; in a certain order The ground bearing hits the bearing with the interference cooperation; the bearing can be smoothly pressed in. It can also be driven by the soft metal sleeve by the hammer or the press. If the axial gap is too large, it will lead to work. Different sound; can be installed by hot-packing method; if the temperature is not properly controlled, the heating temperature is too high; the bearing will be tempered and the hardness will decrease; even a severe oscillation will be formed or the cage will be damaged. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Check that the replacement is not in time for the bearing work; check according to the rules; if there is heat, noise, oscillation, etc.; timely parking to find the reason; eliminate the problem; the bearing is found to be severe fatigue, rust, wear and concave Pit, crack, hardness decreased to HRC<60; or when excessive noise can not be adjusted; should be replaced in time. If the inspection and replacement are not timely; it will form severe damage to the bearing and even the rotor; then affect the normal production. Others; The bearing is not properly disassembled, the oscillation of the equipment anchor bolts is loose; it will also cause the KOYO bearing raceway and the rolling body to be indented; the inner and outer races of the bearing are cracked.
The coupling is not properly aligned; the input shaft of most working equipment is connected to the power shaft through the coupling; therefore, it is necessary to perform the alignment of the coupling during installation; the drive shaft and the driven shaft are on the same axis. .
Rotor imbalance Generally speaking, the rotor of the working equipment must be moved and statically balanced before installation; therefore, the bearing will not present a problem. However, some rotors are subject to corrosion of the medium or wear of solid impurities during operation. Or the axis is tortuous; it will cause unbalanced centrifugal force; then the bearing will heat up and oscillate; the raceway will be severely worn; until it is damaged.
Smooth grease (or smooth grease) used in smooth KOYO bearings has a certain working temperature; when the temperature is too high, it will change; then lose the smooth effect; make the bearing burn due to high temperature. Other; smooth oil (or smooth Fat) The poor texture of itself or the refueling (fat) at work is not timely; it will also cause the bearing temperature to rise or the noise to occur.
3. Strategies to eliminate problems (1) When installing and disassembling bearings; strictly implement maintenance and repair processes; carefully operate; prevent bearing damage caused by improper assembly and disassembly, (2) carefully check during work; find faults; eliminate them in time.
.3) When replacing the bearing; carefully inspect the new bearing; perform a detailed inspection of the shaft diameter and the bearing housing bore and the rotor, (4) refueling on time; ensure that the bearing work condition is always outstanding.
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Source: China Bearing Network Time: 2014-07-01