MOW Mk2 - Modulating Worm

MOW Gearbox

MOW Mk2 gearboxes include low lead angle gearing designed to be inherently self-locking, and offer an increased torque output per size compared with the previous MOW range.

The gearboxes feature a removable output sleeve to facilitate bore and keyway machining, and an indexable baseplate to allow on-centre or off-centre mounting to the valve flange without special machining.


  • Totally enclosed bronze gearing
  • Grease filled for life and fully sealed to IP67 as standard
  • Comprehensive gear ratios combined with a selection of auxiliary input spur gear reducers
  • Angular contact bearings supporting worm shaft
  • Removable and repositionable output sleeve
  • Repositionable baseplate
  • Adjustable mechanical stops (at 0° and 90° ±5°)
  • Inherently self-locking gear componentry

See MOW Mk2 Literature Page for further details.

MOW Gearbox