Factors causing noise in planetary reducers

Traditionally, the main factors affecting the performance of planetary reducers include load capacity, fatigue life, and operating accuracy, while transmission noise is often overlooked. With the development and demand of industry, higher requirements have been put forward for the transmission error of planetary reducers, and more noise control is required. What should be done if there is noise/noise during the use of planetary reducers? What causes the planetary reducer to produce noise/noise during operation?

Planetary reducer

Factors causing noise in planetary reducers

1、 Poor engagement

The common causes of poor engagement include fatigue fracture, overload fracture, or wear caused by foreign object intrusion. If this situation occurs, please contact our technical personnel in a timely manner.

2、 Bearing damage or excessive clearance

In the case of bearing fatigue, it may lead to metal peeling off the bearing surface and bearing breakage, increasing the radial clearance of the bearing and producing abnormal noise. In good continuous operation, the bearing will emit a low moaning or buzzing sound; If sharp hissing, creaking, and other irregular sounds are emitted, it usually indicates poor bearing operation. Loose bearings may wear out, damage the cage, and produce abnormal noises. The countermeasure is to replace the bearings.

There is also insufficient lubrication in the bearings, resulting in dry friction and abnormal noise. A few drops of lubricating oil can be dropped at the bearing.

3、 Improper use of lubricating oil

Improper lubrication and improper use of lubricating oil can cause noise in the gearbox. During high-speed and continuous operation, damage can occur due to rapid friction and insufficient lubrication on the tooth surface, resulting in noise. To avoid this situation, during maintenance, the oil level of the oil gauge needs to be maintained at more than half, and less than half of the oil level is likely to cause insufficient oil when the gearbox is running.

4、 Foreign object invasion

When the planetary reducer is running, there should be no dust, water, or other debris at least 3 meters around it to prevent the reducer from getting entangled in it during operation. If foreign objects are found to have invaded the gearbox, they should be removed and replaced with new lubricating oil.

In summary, the correct use of planetary reducers can minimize damage to components.