Special Worm Gearbox

Support shock loads
Capable of zero backlash
Self locking and overhauling
High level of repeatability
aluminium worm gear box manufacturer


Special worm gearboxes can be customised according to your applications and requirements. For more details, get in touch with us.



Passenger capacity: 15 (1020 kg)

Static load capacity: 4100

Max output shaft torque: 2679 Nm

Rated speed maximum: 0.5 m/sec 1

Gear ratio: 46 / 1


  • Tough, heavy duty, yet compact machine.
  • Dynamically balanced flywheel-cum-brake drum.
  • Smooth and quiet operation.
  • Accurate alignment of both high & low speed shaft.
  • Elevator machines operate with minimum attention, even under the most adverse conditions.
  • All parts are manufactured to precision and uniformity for interchangeability.


Power range: 0.12 to 7.5kW

Reduction ratio range: 7.5/1 to 100/1

Sizes: ALM025 to ALM130


  • Aluminium alloy composes the housing, flanges, feet upto size 90 and cast iron is used for the sizes 110 and above
  • Steel is used for the worm shaft and the case is hardened to 58-60 HRC and profile ground
  • The worm wheel is composed of G20 cast iron hub upon which a casting of AB1 bronze rim is fitted
  • Synthetic oil grade: ISO VG 320