Determine the still left or right hand rule of the worm wheel in accordance with the worm. When the worm is Speed Gear Reducer normally right-handed (the worm can be rotated to the left and ideal and the judgment method is the same as the direction of the helical equipment), the right-hand rule can be used. The worm gear reducer is usually left-handed when left-handed. law. The four fingertips are bent in direction of the path of the worm (the directly arrow indicates the path of circular motion on the visible part of the worm), and the contrary direction of the thumb may be the direction of motion of the turbine in accordance with the worm. The partnership between your worm and the turbine in the worm reducer depends upon The relative position between your two, the direction of rotation of the worm and 
its direction of rotation.
The worm rotation direction (discussing the direction of the lead angle of the worm itself) is split into left-handed and right-handed, and both left-handed worm and the right-handed worm could be rotated clockwise and counterclockwise. There are four instances in total:
1. The worm rotates left, the worm is on, and the worm is certainly down. The right hands rotates the worm clockwise, and the worm wheel rotates counterclockwise;
2. The worm rotates to the left, the worm is normally under, and the worm is on. The right hand rotates the worm clockwise, and the worm steering wheel rotates clockwise;
3. The worm rotates to the right, the worm is normally on, and the worm is definitely down. The right hands rotates the worm clockwise, and the worm steering wheel rotates clockwise;
4. The worm rotates to the proper, the worm is certainly on, and the worm can be down. The right hands rotates the worm clockwise, and the worm steering wheel rotates counterclockwise;