
A worm gear is a device that changes torque and angular velocity rotational motion. It consists of a worm (screw) and a worm wheel (gear wheel), which are in constant mesh.
Purpose of the worm gear
Worm gearboxes are widely used in various industries due to their unique properties. Their main applications are:
- Increasing torque: A gear reducer allows for a significant increase in output torque with a relatively small input torque. This makes them ideal for systems where a large amount of force is required to move or rotate something.
- Decreasing angular velocity: As the torque increases, the worm gear reduces the speed of the output shaft. This is important for precise motion control.
- Self-braking: One of the key features of worm gearboxes is their ability to self-lock. This means that in most cases, rotation of the output shaft is not possible without rotation of the input shaft, which provides additional safety and holds the mechanism in a given position.
- Compactness: Due to their design features, worm gearboxes are often more compact compared to other types of gearboxes with a similar gear ratio.
Worm gear for ball valves and butterfly valves
For ball valves and butterfly valves, a worm gear is an integral element of the management systemIt performs the following important functions:
- Precise positioning: Allows you to precisely open or close the valve/damper, providing smooth flow control.
- Ease of control: Significantly reduces the effort required to manually open/close large valves or dampers.
- Position lock: Thanks to the self-braking effect, the gearbox reliably holds the valve or damper in the set position, preventing arbitrary closing or opening under environmental pressure.
- Overload protection: Provides smooth operation, reducing the load on the valve/damper actuator.
Thus, the worm gear unit controls the shut-off and control valves. safer, more efficient and more convenient.
Where to buy a worm gearbox in Kiev?
If you need a worm gear reducer, you can buy it in Kiev at the company “Ukspar”.
UKSPAR offers a wide range of worm gearboxes that meet high standards of quality and reliability for various industrial needs.
Leave a review about the product

| 5 star | 0% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |









