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Everything To Know About Quarter Turn Worm Gearboxes

Updated: Apr 20, 2023

A quarter-turn worm gearbox can be defined as a mechanical device that transmits power between shafts at an angle of 90 degrees. It is typically used in applications like valve actuation systems or rotary motion control to control torque precisely.


Quarter turn worm gearboxes are available in a variety of sizes, materials, and configurations to meet the needs of different applications. They can also be customized to suit specific requirements.



Viral Industries is among the most renowned quarter turn gearbox manufacturers, suppliers, and exporters across the USA, Europe, Canada, and Gulf. The company specializes in producing highly efficient and reliable gearboxes with ingenious designs. But saying all this, let us first understand what quarter-turn gearboxes are.


Quarter Turn Gearboxes


Quarter turn worm gearboxes are used in a wide range of industrial applications, including valve actuation, motion control, and automation systems. They offer high torque transmission and are known for their quiet operation and low maintenance requirements.


In other words, if we have to understand the working of quarter-turn gearboxes, we can explain it as follows. The applied power to the worm makes it rotate against the wheel. This power is then transferred to the worm wheel, which causes the wheel to thrust against the load. This complete setup enables the professionals to determine the required speed and torque. Additionally, quarter-turn gearboxes are relatively low maintenance and are known for low noise levels. Proper lubrication and maintenance are essential for ensuring the optimal performance and longevity of quarter turn worm gearboxes.


Types Of Quarter Turn Gearboxes


Viral Industries - the leading quarter turn worm gearbox manufacturer, offers a range of high-performing and efficient gearboxes across various countries.Below is a list of some of their products:


Quarter Turn Worm Gearbox - Hand-Wheel Operation

This gearbox comes in various models with output torque in the range of 800 nm-4500 nm(590 lbf-ft to 3320 lbf-ft). The different models have hand wheels ranging from 250 mm to 600 mm. The hand-wheel effort ranges from 46.6 kg to 72.9 kg.


Quarter Turn Worm Gearbox - Actuator Operation

This gearbox comes in various models with output torque capacity in the range of 800 nm-4500 nm(590 lbf-ft to 3320 lbf-ft) and input torque capacity in the range of 57 nm-214 nm (42 lbf-ft to 158 lbf-ft).


Quarter Turn Worm Gearbox with Spur Gearbox - Hand-Wheel Operation

This gearbox comes in various models with output torque in the range of 4,500 nm-5,00,000 nm(3,320 lbf-ft to 3,68,800 lbf-ft). The different models have hand wheels ranging from 600 mm to 1000 mm. The hand-wheel effort ranges from 28.3 kg to 84.5 kg.


Quarter Turn Worm Gearbox with Spur Gearbox - Actuator Operation

This gearbox comes in various models with an output torque capacity in the range of 4,500 nm-5,00,000 nm(3,320 lbf-ft to 3,68,800 lbf-ft) and input torque capacity in the range of 83 nm-414 nm (61 lbf-ft to 305 lbf-ft).


Wrapping Up


As the best quarter turn worm gearbox manufacturer & suppliers in the USA, we comprehend the necessity of these gearboxes across various industries like water management, chemical plants, power plants, petroleum industries, agriculture, etc., and strive to deliver excellence to our clients.


Unique designs of the gearboxes manufactured by Viral Industries make them ideal for applications that require a 90-degree change in the direction of input and output shafts.

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