ZGY370 Worm Gear Motor JGY370 4632 DC 6V 12V 24V High Torque Worm Reversible Turbo Metal Geared Gear-box Reducer

The solution to the noise of the reducer:
Due to long-distance transportation or transfer, it may cause abnormal noise and dislocation of the internal gearbox. Because it is an all-metal gear, under normal circumstances, it is louder than plastic gears.
Solution:
1. Disassembly
2. Rearrange the metal gears in the gearbox
3. Normally, the torque of metal gear is greater than that of plastic gear, but the relative sound is also a little louder