Viral Industries is a renowned Quarter-Turn Worm Gearbox manufacturer, supplier & exporter in the USA, Europe, Canada, and Gulf. A Quarter-Turn Worm Gearbox is a mechanical device that transmits rotational power from one shaft to another at a 90-degree angle. It is typically used when precise and controlled torque is required, such as in valve actuation systems or other rotary motion control applications.

A Quarter-Turn Worm Gearbox manufacturer - Viral industries is a company that specializes in the design and production of Quarter-Turn worm gearboxes. We ensure high quality and reliable performance for our customers. Furthermore, our Quarter-Turn Worm Gearbox can deliver torque ranging between 800 Nm - 500000 Nm (590 lbf-ft - 3,68,800 lbf-ft).

Note: Our manufacturing unit is only in India but we export Quarter-Turn Worm Gearbox to the USA, Europe, Canada, and Gulf.

  1. Quarter Turn Worm Gearbox - Hand-Wheel Operation

Viral Ind.
Model No.
Output torque capacity Ratio M A
(±10%)
Hand-wheel Diameter Hand-wheel Effort
Nm. lbf-ft mm inch lbs kilogram
VW-07 800 590 40 14 250 10 102.8 46.6
VW-10 1,100 811 42 15 400 16 82.5 37.4
VW-15 1,800 1,327 42 16 400 16 126.5 57.4
VW-20 2,400 1,770 52 20 500 20 108.0 49.0
VW-30 3,700 2,729 52 20 600 24 138.7 62.9
VW-40 4,500 3,320 55 21 600 24 160.7 72.9
Quarter Turn Worm Gearbox - Hand-Wheel Operation

  1. Quarter Turn Worm Gearbox - Actuator Operation

Ball Valve Gearbox (VWE Models for Actuator Operation)
Viral Ind.
Model No.
Output torque capacity Ratio M A
(±10%)
Input torque capacity Mounting Flange at Actuator Side (ISO 5211)
Nm. lbf-ft Nm. lbf-ft
VWE-07 800 590 40 14 57 42 F10, F14
VWE-10 1,100 811 42 15 73 54 F10, F14
VWE-15 1,800 1,327 42 16 112 83 F10, F14
VWE-20 2,400 1,770 52 20 120 88.5 F10, F14
VWE-30 3,700 2,729 52 20 185 137 F10, F14
VWE-40 4,500 3,320 55 21 214 158 F10, F14, F16

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

Viral Ind.
Model No.
Output torque capacityRatioM A
(±10%)
Hand-wheel DiameterHand-wheel Effort
Nm.lbf-ftmminchlbskilogram
VWSGA-404,5003,320165546002462.428.3
VWSGA-606,0004,425194626002472.632.9
VWSGA-808,0005,900220706002485.738.9
VWSGA-10010,0007,375300956002478.935.8
VWSGA-15015,00011,0634491437002867.430.6
VWSGA-25025,00018,4406051907002884.638.4
VWSGA-35035,00025,8159923207002870.331.9
VWSGA-50050,00036,87810393407002894.542.9
VWSGA-75075,00055,31714254617503097.644.3
VWSGA-10001,00,00073,756176856910004079.135.9
VWSGA-15001,50,0001,10,6352109655100040106.348.2
VWSGA-20002,00,0001,47,5122381762100040118.153.6
VWSGA-25002,50,0001,84,3902510800100040140.663.8
VWSGA-37503,75,0002,76,58533321051100040160.572.8
VWSGA-50005,00,0003,68,80038081208100040186.284.5
Quarter Turn Worm Gearbox with Spur Gearbox - Hand-Wheel Operation

  1. Quarter Turn Worm Gearbox with Spur Gearbox - Actuator Operation

Quarter Turn Worm Gearbox with Spur Gearbox - Actuator Operation
Viral Ind.
Model No.
Output torque capacityRatioM A
(±10%)
Input torque capacityMounting Flange at Actuator Side
(ISO 5211)
Nm.lbf-ftNm.lbf-ft
VWESGA-404,5003,320165548361F10,F14
VWESGA-606,0004,425194629771F10, F14
VWESGA-808,0005,9002207011484F10, F14
VWESGA-10010,0007,3753009510578F10,F14
VWESGA-15015,00011,06344914310577F10, F14
VWESGA-25025,00018,44060519013297F10, F14
VWESGA-35035,00025,81599232010981F10, F14
VWESGA-50050,00036,8781039340147108.5F10, F14
VWESGA-75075,00055,3171425461163120F10, F14
VWESGA-1000100,00073,7561768569176130F10,F14, F16
VWESGA-15001,50,0001,10,6352109655236174F10, F14, F16
VWESGA-20002,00,0001,47,5122381762262.5194F10, F14, F16
VWESGA-25002,50,0001,84,3902510800312.5230.5F10, F14, F16
VWESGA-37503,75,0002,76,58533321051357263F10, F14, F16
VWESGA-50005,00,0003,68,80038081208414305F10,F14, F16

Valve Mounting Detail

Viral Ind. Model No.Valve Side Mounting Flange (ISO 5211)Max. Spindle Diameter (mm)
VW-07 / VWE-07F10, F0735
VW-10 / VWE-10F12, F1045
VW-15 / VWE-15F14, F1250
VW-20 / VWE-20F16, F14, F1255
VW-30 / VWE-30F14, F1660
VW-40 / VWE-40F16, F2570
VWSGA-40 / VWESGA-40F16, F2570
VWSGA-60 / VWESGA-60F16, F2580
VWSGA-100 / VWESGA-100F16, F25, F3085
VWSGA-150 / VWESGA-150F30, F35100
VWSGA-250 / VWESGA-250F30, F35, F40110
VWSGA-350 / VWESGA-350F35, F40120
VWSGA-500 / VWESGA-500F35, F40155
VWSGA-750 / VWESGA-750F35, F40, F48185
VWSGA-1000 / VWESGA-1000F40, F48185
VWSGA-1500 / VWESGA-1500F48, F60230
VWSGA-2000 / VWESGA-2000F48, F60270
VWSGA-2500 / VWESGA-2500F48, F60300
VWSGA-3750 / VWESGA-3750F48, F60300
VWSGA-5000 / VWESGA-5000F48, F60350

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 -20˚C To 120˚C
  • High temperature application up to 150˚C
  • Low temperature application up to -50˚C

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

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