1. The reducer heats up and leaks oil. In order to improve efficiency, the universal worm gear reducer uses non-ferrous metals as the worm wheel, and harder steel as the worm. Because it is a sliding friction drive, it will generate higher friction during operation. The heat causes a difference in thermal expansion between the speed reducer component and the seal, thereby creating a gap in each mating surface, and thinning of the oil due to temperature rise, which tends to cause leakage.

2. Worm gear is worn, worm gear is generally tin bronze, paired worm material is generally hardened from 45 steel to HRC45-55, commonly used 40C: hardened HRC50-55, grind with a worm grinder to a roughness of RaO 8 fcm, reducer normal operation When the worm is like a hardened "scythe", the worm wheel is constantly smashed, causing the worm wheel to wear.

3. The transmission of small helical gear wear is mainly caused by unreasonable material matching or improper selection of lubricants and improper amount of additives, resulting in the service life not reaching the design life.

4. The bearing (worm) is damaged. The general situation is that installation problems lead to excessive radial force and excessive external load, which causes bearing damage.

Choose the right amount of lubricant and replace the original parts. Install the reducer according to the installation instructions. Generally, the above problems can be avoided as much as possible.