Welcome to Viral Industries, one of the best De-clutchable type worm gearbox manufacturer & supplier in USA, Europe, Canada and Gulf. Our manual override gearbox is designed to provide maximum efficiency and durability for a wide range of industrial applications. Our de-clutchable type worm gearboxes are available in a variety of sizes and ratios to suit your specific application. They are also designed to handle high torque loads and are suitable for use in harsh environments.

Furthermore, our De-clutchable type worm gearbox (manual override gearbox) can deliver torque ranging between 600 Nm – 1,00,000 Nm (516 lbf-ft – 73,756 lbf-ft).

At Viral Industries, we are committed to providing our customers with the highest quality products and services. Contact us today to learn more about our gearbox and how we can help you with your industrial application.

Note: Our manufacturing unit is only in India, but we export De-clutchable type worm gearbox to the USA, Europe, Canada, and Gulf.

  1. De-Cluchable Type Worm Gearbox (VWM Models for Manual Override Gearbox)

Viral Ind.
Model No.		 Output torque
Capacity		 Ratio M A
( ±10 % )		 Hand-wheel
Diameter		 Hand-wheel
Effort
Nm. lbf-ft mm
 Inch
 lbs Kilogram
VWM-05 600 516 40 14 250 10 90.0 40.8
VWM-15 1,500 1106 42 16 400 16 105.4 47.8
VWM-25 2,500 1844 52 20 500 20 112.5 51.0
VWM-40 4,000 2950 55 21 600 24 142.8 64.8
VWM-60 6,000 4425 194 62 600 24 72.6 32.9
VWM-80 8,000 5900 220 70 600 24 85.7 38.9
VWM-100 10,000 7376 312.5 95 600 24 78.9 35.8
VWM-150 15,000 11063 449 143 700 28 67.4 30.6
VWM-250 25,000 18439 605 190 700 28 84.6 38.4
VWM-350 35,000 25815 992 320 700 28 70.3 31.9
VWM-600 60,000 44254 1200 380 750 30 94.7 43.0
VWM-1000 1,00,000 73756 1768 569 1000 40 79.1 35.9
DeCluchable Type Worm Gearbox

VWM Models without Spur Gearbox
from VWM-06 to VWM-40

Manual Override Gearbox

VWM Models with Spur Gearbox
from VWM-60 to VWM-1000

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  1. De-Cluchable Type Worm Gearbox (Manual Override Gearbox)
    For Both Side Flange or Top Mounted Actuator

Manual Override Gearbox manufacturer
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Valve Mounting Detail

Viral Ind.
Model No.		 Both Side Mounting Flange(ISO 5211) Max.
Spindle Diameter
(mm)
VWM-05 F10, F07 35
VWM-15 F14, F12 50
VWM-25 F16, F14 55
VWM-40 F25, F16 70
VWM-60 F25, F16 80
VWM-80 F25, F16 80
VWM-100 F30, F25 85
VWM-150 F35, F30 100
VWM-250 F35, F30 110
VWM-350 F48, F40, F35 120
VWM-600 F48, F40 155
VWM-1000 F60, F48 185

Features:

  • Clockwise rotation of input will give clockwise rotation of output.
  • Self-Locking gearbox.
  • Bearings supported assembly.
  • Suitable for Actuator operation.
  • Grease Lubricant Gearbox.
  • Higher ratio options to reduce effort.
  • Locking Arrangement.
  • Available for marine application.
  • Available for horizontal hand-wheel orientation.

Enclosure:

  • IP-65 ,IP-67, IP-68

Temperature Limit:

  • Normal application -20ËšC To 120ËšC
  • High temperature application up to 150ËšC
  • Low temperature application up to -50ËšC

Material Options for Worm-Wheel:

  • Phosphorus Bronze (PB-2)

Bore Options for Worm-Wheel Quadrant:

  • Round Shape with multiple key-way
  • Square Shape
  • Hexagon Shape