The manufacturer of water-cooled bearing seats will introduce the noise reduction methods for water-cooled bearing seats.

1. Wound sound and its control methods.

If there are cracks, indentations or corrosion on the rolling surface of the rolling bearing, periodic vibrations and noise such as rivets will be generated. The cycle may be fixed, but most of them have a certain correspondence with the rotational speed. There will be continuous wounds on the channel, and wounds will be hidden on the steel ball. In addition, this noise varies with installation and lubrication conditions. The noise control methods include: not knocking the bearings during installation, assembling the bearings and shafts and installing them on the bearing seat to prevent bearing tilting; Prevent bearing corrosion and impact vibration during transportation; Use high viscosity lubricating grease.

2. Dust noise and its control methods.

There are foreign objects such as dust inside the rolling bearings, which can cause non periodic vibrations and so-called dust sounds. The magnitude of vibration and noise is uncertain, or whether they exist.

The control methods for dust noise include: improving the cleaning methods for non-standard bearing seats, strictly cleaning all bearings, shafts, seat holes, and matching components before installation, removing foreign objects from lubricants, improving bearing sealing, and avoiding the use of impure or embedded plastic retainers.

3. Noise caused by lubrication factors and countermeasures.

Improper lubrication selection, insufficient lubrication, or aging and hardening can lead to bearing vibration and noise, which may not be regular. To achieve this, simply choose the appropriate lubricant, adjust the amount of lubricant, extend the service life of the lubricant, and determine the replacement cycle reasonably.

4. Noise related to the host and countermeasures.

The noise from bearing manufacturers is not only caused by bearings, so it is futile to simply look for the cause from bearings. Pay full attention to the host and improve its performance if necessary. Now we will mainly talk about the common buzzing sound and frame resonance sound of motors.

5. Motor buzzing and countermeasures.

The axial vibration of the motor shaft produces high-frequency noise - buzzing sound, which has the same frequency as the axial vibration and can remain constant. The method of preventing buzzing is the same as preventing axial vibration.

6. Resonance sound of bearing frame and countermeasures.

When the axial natural vibration of the outer ring mass system mentioned above causes the axial bending natural vibration of the bearing frame, a noise called resonance will be generated. Adding pre tightening method can increase the axial natural frequency of the outer ring quality system, improve the failure conditions, and reduce noise.