1. Large transmission ratio and compact structure.

2. The transmission system operates smoothly and noiselessly. This is because the worm gear teeth are continuous helical teeth, which mesh with the gear teeth in a continuous manner. The worm gear teeth do not engage or disengage, thus ensuring smooth operation with minimal impact, vibration, and noise.

3. It possesses self-locking property. When the helix angle of the worm is very small, the worm can only drive the gear to rotate, but the gear cannot drive the worm to operate.

4. Generally speaking, the worm and the shaft are made into one piece, which is called a worm shaft.

Main purposes:

Currently, gear and worm reducers are the optimal choice for controlling the deceleration and transmission systems of mechanical equipment with high speed ratio, low noise, and high stability in contemporary industrial equipment. They have been widely used as speed reduction devices in process equipment across numerous industries and fields, including metallurgy, mining, transportation, water conservancy, chemical engineering, food, beverage, textile, tobacco, packaging, and environmental protection.

The basic structure of a gear worm reducer primarily consists of transmission system components such as worm gears, shafts, bearings, a housing, and its accessories. It can be divided into three fundamental structural parts: the housing, the worm gear, and the combination of bearings and shafts. The housing serves as the base for all components in the worm gear reducer, supporting and securing shaft components, ensuring the correct relative position of transmission system parts, and supporting the loads acting on the reducer. The worm gear plays a crucial role in transmitting motion and power between two intersecting axes, while the bearings and shafts are key in power transmission, operation, and improving work efficiency.

Gear worm reducers suffer from high-damage rolling friction, so compared to helical gears, bevel gear hardened tooth surface reducers have greater damage and lower efficiency. The key factors determining this are as follows:

The transmission ratio of the helical gear worm stage input speed of the worm gear reducer has a very significant improvement in working efficiency compared to the single-stage worm gear reducer. For worm gear reducers with a large speed ratio, it is only possible for their high efficiency η to be less than 0.5.