Worm gear

Worm Gear
Worm gears are often used when large quickness reductions are needed. The reduction ratio is determined by the number of begins of the worm and number of teeth on the worm gear. But worm gears have sliding contact which is silent but will produce heat and have relatively low transmission performance.
Many worm gears have a fascinating property that no other gear arranged has: the worm can certainly turn the gear, but the gear cannot turn the worm. This is because the position on the worm is indeed shallow that when the gear attempts to spin it, the friction between your equipment and the worm keeps the worm set up.
This feature pays to for machines such as conveyor systems, where the locking feature can act as a brake for the conveyor when the motor isn’t turning. One other very interesting use of worm gears is used on some high-performance cars and trucks.
As for the materials for creation, in general, worm is made from hard metal as the worm gear is manufactured out of relatively soft steel such as for example aluminum bronze. That is since the number of teeth on the worm equipment is relatively high in comparison to worm using its number of begins being usually 1 to 4, by reducing the worm gear hardness, the friction on the worm the teeth is reduced. Another feature of worm manufacturing may be the need of specific machine for gear cutting and tooth grinding of worms. The worm gear, however, may be made out of the hobbing machine used for spur gears. But due to the different tooth shape, it isn’t possible to cut several gears at once by stacking the apparatus blanks as can be carried out with spur gears.
The applications for worm gears include gear boxes, fishing pole reels, guitar string tuning pegs, and in which a delicate rate adjustment by utilizing a huge speed reduction is needed. When you can rotate the worm gear by worm, it is usually extremely hard to rotate worm utilizing the worm gear. This is called the personal locking feature. The self locking feature cannot continually be assured and a separate method is preferred for accurate positive reverse prevention.
Also there is duplex worm gear type. When working with these, it is possible to change backlash, as when one’s teeth wear necessitates backlash adjustment, without requiring a change in the guts distance. There are not too many producers who can produce this kind of worm.
The worm equipment is additionally called worm wheel.
Duplex Worm Gear
· Custom creation according to customer request
· Diameter from 15 to 300 mm, axial distances from 17 to 210 mm, module from 0.5 to 10, shaft size up to 500 mm
· Materials selection according to consumer requirements (steel, bronze, fabric laminate or plastic-type material)
· All process steps (turning, hobbing, annealing, flank grinding, grinding, measuring) from a single source

micro worm gear set
Ever-power manufactures worm equipment sets, which are made up of a worm and worm wheel, for make use of in a number of industries including aerospace and military instrumentation, medical, oral, oil and gas exploration, robotics, optical and commercial controls. Our precision worm equipment sets can be manufactured to satisfy the latest AGMA/ISO specs up to the same as AGMA Q14 per AGMA 390. 03.
We offer an intensive selection of precision worm equipment collection options including:
Best Hand Worm and Worm Wheels
(Left hand on request)
Anti-Backlash Worm Wheels
Pin Hub and Split Hub Worm Wheels
Browse our assortment of stainless- steel worms and bronze worm wheels. You can expect many regular sizes and also have the appearance expertise to manufacture custom made worm wheels to printing. Both our regular and customized worm tires can be found numerous pitches, diameters, begins and ratios
worm gear pinion