slewing bearingIt is a new type of mechanical parts. It is composed of inner and outer rings and rolling elements.slewing bearingIt is a large bearing that can withstand comprehensive load. It can withstand large axial and radial loads and overturning moments during operation. Swing bearings are widely used in practical industry. They are called "joints of the machine". They are important transmission components in the mechanical field, requiring relative rotation between two objects. Bearing axial force, radial force and overturning moment. With the rapid development of the machinery industry, slewing bearings have been widely used in marine equipment, construction machinery, light industrial machinery, metallurgical machinery, medical machinery, industrial machinery and other industries.

Slewing bearings are usually made up of worms,slewing bearingBearing seat, motor and other components. Because the core member adopts slewing bearing, it can bear axial force, radial force and overturning moment at the same time. There are many forms, but the structure and composition are basically the same.

If the rolling surface of the slewing bearing is cracked, pitted or corroded. It will produce periodic vibration and noise like rivets. The period may be fixed, but most of them have a certain correspondence with the speed. When this happens, traces are occasionally left on the steel ball, and this noise will vary with the installation and lubrication conditions.

This noise is not only caused by the bearing. It is invalid to find the reason from the bearing alone. Pay full attention to the host and improve its performance when necessary. The buzz and frame resonances common in motors are now mainly described. The hum of the motor and its countermeasures The vibration of the motor shaft The rotary bearing will produce a lot of high-frequency noise, the frequency of which is the same as the frequency of axial vibration. can be constant. It can also be changed. The same way to prevent hum is to prevent axial vibration.

Rotational sound and its countermeasures when the axial self-vibration of the outer ring mass system is caused.slewing bearingWhen the axial bending self-vibration. A type of noise called resonance sound is produced. Increasing the preload can improve the axial natural frequency of the outer ring mass system, destroy the resonance condition and reduce the noise.