What is the reason for the leakage of lubricating grease in the harmonic reducer?

The correct use of the lubricating grease of the harmonic reducer is very important. Strictly following the manufacturer's lubricating grease instructions can prolong the service life of the harmonic reducer, but there are still other reasons that will cause the lubricating grease to Leakage, what is the cause of the grease leakage of the harmonic reducer?

1. Unreasonable selection of lubricating grease

The choice of lubricating grease must be selected according to the type, working condition, working state, environmental conditions and grease supply method of the harmonic reducer.Unreasonable selection of lubricating grease will accelerate wear and even cause equipment failure.

2. Pressure difference inside and outside the harmonic reducer

During the working process of the harmonic reducer, various internal frictions will generate a large amount of heat, resulting in an increase in internal temperature and pressure. Under the action of the pressure difference, the lubricating grease will leak from the gap.The higher the internal temperature rise of the harmonic reducer, the greater the risk of lubricating grease leakage.

3. The structure design of the oil seal is unreasonable

The premise of the pumping effect of the oil seal is that the peak contact pressure should be close to the oil side. When the pressure peak is close to the air side, the pressure gradient on the oil side is smaller than the pressure gradient on the air side, and the oil seal will definitely leak grease.

4. Incorrect selection of oil seal material

The selection of oil seal material is unreasonable. At high temperature, grease will accelerate the dissolution of rubber, resulting in early failure of the seal. In addition, if the seal material is not selected properly, it may lead to early wear of the seal shaft and leakage.

5. Incorrect manufacturing and assembly process

The amount of oil injected, the inclination of the smoothness of the sealed shaft, and the incorrect assembly of the oil seal can all cause the leakage of the harmonic reducer lubricating grease.

The use of lubricating grease for harmonic reducers is very important. During use, various leakage risks should be eliminated to the greatest extent. Strict selection of lubricating grease, appropriate sealing materials, and correct production and assembly can better prevent Risk of leakage of harmonic reducer lubricating grease.