2. For the shaft extension bearing cover, besides ensuring the clearance between the end cover and the joint surface of the box body according to Article 1, a seal and an oil drain plate are added in the end cover.
3. To prevent oil leakage, add a drain plate to the shaft on the inner side of the bearing close to the box wall.
4. In the inner hole of the drainage plate, the shafts are in interference fit and rotate together.
5. The number of felt ring joints exceeds one.
6, harmonic reducer with big gear immersed in the oil pool for lubrication.
7. Causes of leakage of input shaft and motor shaft of harmonic reducer.