Strong Potential Hiding into Worm Gear

The worm gear reduces speed through meshing an involute helicoids gear with a worm. This arrangement reduces high ratio in a small package. Nevertheless transmitted gear high worm burdens and are capable of high reduction ratios. In most systems, is introduced through the screw, while the output gear is. Since worm gear screw work, friction is inherent in their operation.

worm gears have at least two teeth in contact at any time. When the meshing teeth, they tend to destroy whole, rather than looking like with spur gears. The few moving parts are completely enclosed in a sealed gear oil, covered the possibility of foreign objects eliminated in the teeth. These properties offer several advantages. First, vibration, chatter, and other gear noise is virtually nonexistent, the production of transmission of continuous power, quiet and shockless. The gears also have a high impact resistance.
Before understanding the design there is a gear unit worms a few key concepts. For example, the game is the difference between the tooth space and the tooth thickness along the pitch circle of the toothed coupling wheel. Backlash is necessary to allow the lubrication of transmission and allow for thermal expansion. However generated game also has noise and inefficient power transfer. While all courses require some flexibility, it is generally not critical for worm gears, except where Index or accuracy timing is important.
Lubrication is also important in all transmissions. Once the container is filled, the oil level should be checked regularly recommend a complete oil change every six months for normal service and maintenance. Oil in the gear case worm directed spray on the worm and the bearing contact area of ​​the tooth.