Worm gear unit

The modular construction kit for our ZAE worm gear units forms the basis for our extensive catalogue programme. If this standard is not suitable for operating your product,  our in-house production at ZAE means that we can customise everything on the gear unit. If you are interest-ed, talk to us today!

Product details


  • Vibration and shock-absorbing
  • Extreme overload capacity
  • Quiet, damping operation
  • High power density
  • Output side with hollow shaft, one-sided or double-sided shaft (see below)
  • Mathematically accurate ratios
  • Excellent efficiency
  • Self-locking possible
  • Maintenance-free
  • IEC motor attachment, servo motor attachment or free shaft end
  • Various modifications available


  • Low backlash
  • Second screw shaft end (e.g. for brakes, encoder attachment or power split)
  • Clamping set on the hollow shaft
  • Integrated safety slip clutch
  • with or without fan (from size 100)

Torques on the output side

T2;perm: 20 Nm to 70000 Nm

Ratios (*)

  • 5:1
  • 7.5:1
  • 10:1
  • 13.3:1
  • 15:1
  • 20:1
  • 26.5:1
  • 30:1
  • 40:1
  • 53:1
  • 62:1
  • 72:1 (self-locking)
  • 83:1

* More ratios on request

Sizes (centre distance)

  • 40
  • 50
  • 63
  • 80
  • 100
  • 125
  • 160
  • 200
  • 250
  • 315
  • 400


Up to 97%

Input speed

Up to n1 = 6000 min-1 permissible

Shaft arrangement

Hollow Shaft

Single-sided output shaft

Single-sided output shaft

Double-sided output shaft


Model B

Model F

Model G

Model A
(shaft mounted)

Performance Data
Description Frame size Ratio max. acceleration torque [Nm] S1 nominal torque [Nm] EMERGENCY STOP torque [Nm]
Description Frame size Ratio Speed [rpm] Permissible torque [Nm] Max. torque [Nm]


Worm gear unit: Types E040 to E400

With free drive shaft end


These gear units are used, for example, in the beverage industry and in steel construction.

Worm gear units: Types M040 to M400

For IEC standard motor attachment


These gear units are used, for example, in the food industry and in plant construction.

Worm gear units: Types S040 to S125

For servomotor attachment


These transmissions are used, for example, in the packaging industry and in machine tools.

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