Gearhead Designs

Gears with constant transmissions

This kind of gears is mainly used

• to change the speed
• to change the torque

Mostly, couplings are used to incorporate the gear between the drive unit and the machine's component that is to be driven.

Positive gears

• Gears with toothed wheels
  • Spur gear: The entrance and the exit shaft are parallel.
  • Planet gear: The drive  shaft and the driven shaft are co - axial.
  • Mitre gear: The drive shaft and the driven shaft are not parallel 
  • Spiral gear: Its shafts cross; its shafts' axes are wry, i. e., they do not have any intersections.
  • Harmonic Drive gear: In case of the Harmonic - Drive  the driving element is permanently deformed by an elliptically curved body.
• Cyclo Drive gear
• Worm gear pair
• Chain gear
• Synchronous belt drive
• Step-by-step motion linkage

Non-positive gears

• Belt-gears
• Cone-ring gears: Both, the drive shaft and the driven shaft are represented as cones which, via a continually adjustable ring make possible a (nearly) random transmission.
• Rolling member transmissions
• Rolling ring transmissions

Gears with variable transmissions

Cam gear

Mechanisms where the form of a moved curve at first scanned and then transferred to other (rotatory or translatoryelements of the gear.

Coupler gear

Coupler gears are actuators that convert rotations into either linear or swinging movements.

Step-by-step motion linkage

Step-by-step motion linkages transfer continuous rotations in intermittent, step-by-step rotations.