What are the Causes of Bearing Noise? And What are the Solutions?

Bearing noise under different conditions and solutions

1. A sound of hum will send when the bearing in a good state of continuous rotation. If it has a sharp hiss, squeak and other irregular sounds, it often indicates that the bearing is in bad continuous rotation condition. Is squeaking noise may be caused by improper lubrication. Also, improper bearing clearance can also cause metallic sound.

2. The indentation in the outer ring track of the bearing will cause vibration and create a smooth as well as crisp sound

3. If there is intermittent noise, it indicates that the rolling piece may be damaged. The sound occurs when a damaged surface is rolled, and hiss is often caused by contaminants in the bearing. Serious bearing damage can cause irregular and loud noises.

4. The knocking scars during installation will also cause noise, which will follow the high metal noise of the bearing speed.

Reason 1: Abnormal load.
Measures: Studying the bearing clearance, adjusting the load, and correcting the enclosure shoulder position.

Reason 2: Poor installation.
Measures: Improving the machining and installation accuracy and method of shaft and shell.

Reason 3: Insufficient or inappropriate lubricants.
Measures: Adding lubricant and choosing the correct lubricant.

Reason 4: The rotating parts are in contact.
Measures: Modifying the contact part of the curved seal.

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Regular noise of bearing

Reason 1: Indentation, rust, or scar on the rolling surface caused by foreign matter.
Measures: Replacing bearing, cleaning relevant parts, improving sealing device, and using the clean lubricant.

Reason2: (after steel carburizing) Surface deformation.
Measures: Replacing the bearing and pay attention to its use.

Reason 3: Raceway surface stripping.
Measures: Replacing the bearing.

Irregular noise of bearing

Reason 1: Big clearance.
Measures: Studying the fit and bearing clearance. Also, modifying the preload.

Reason 2: Foreign matter invasion.
Measures: Replacing bearing, cleaning relevant parts, improving sealing device, and using the clean lubricant.

Reason 3: Spherical damage and exfoliation.
Measures: Replacing bearing.