Ways to solve the noise of slewing ring
The common solutions for slewing bearing noise are dust and scars as follows:
(1) Control method of dust sound
There are foreign objects such as dust in the slewing ring, which will cause non-periodic vibration, the so-called dust sound, the magnitude of vibration and noise is variable, and there may or may not be.
Dust sound control method: improve the cleaning method of slewing ring/slewing table bearing, strictly clean the bearing, shaft, seat hole and matching parts before installation; remove foreign matter in the lubricant; improve the sealing of the bearing; avoid the use of impure materials Or a plastic cage embedded with foreign objects.
(2) Control method of scar sound
If the rolling surface of the slewing bearing has cracks, indentations or corrosion, periodic vibration and noise like riveting rivets will occur. The period may be fixed, but most of them have a certain corresponding relationship with the speed. The scars will be continuous on the channel. Occurs, the scars appear on the steel ball from time to time, and this noise varies with the installation and lubrication conditions.
The control method of this kind of noise: Do not knock the bearing during installation, prevent the bearing from tilting when the bearing is assembled with the shaft and then installed in the bearing housing; prevent bearing corrosion during storage and prevent shock and vibration during transportation; use high-viscosity grease .
(3) Noise caused by lubrication factors and countermeasures
Wrong selection of lubricant, insufficient lubricant or aging and hardening can cause vibration and noise in the slewing ring/turntable bearing, and there is no certain rule for this noise. In this case, the only way to choose a suitable lubricant, adjust the amount of lubricant, extend the service life of the lubricant and reasonably determine the replacement cycle.