Kinematic model: gear drive (GL 105)

Kinematic model: gear drive (GL 105)

investigation of single-stage and multistage spur gears



  • The gear is the element of a machine that transmits and transforms motion.
  • A gear comprises at least one drive, an output and a frame.
  • Gear drives are uniform translation gears.
  • The rotary motion is transferred from one shaft to a second through positive transmission by gears.
  • In spur gears, the gears are mounted on parallel axles.
  • The drive and the output shaft are arranged in parallel.
  • Planetary gears are a type of spur gears, in which the drive and the output shafts are on the same axle.
  • The GL 105experimental unit can be used to study gear drives in the form of spur or planetary gears.
  • The unit focuses on the consideration of kinematics.
  • The experimental unit consists of a base plate with a fixed axle, on which is mounted a pivoting rail.
  • Two other axles can be attached at any position on this rail.
  • Selecting and combing the gears with different numbers of teeth allows you to realise different transmission ratios and gear types.
  • The rail is locked in experiments with spur gears.
  • Depending on the aim of the experiment, one or two additional axles can be positioned on the rail.
  • The gears can be coupled to each other via driving pins or to the fixed axle.
  • It is driven by hand.
  • The full revolutions are counted to determine the transmission ratio.
  • To investigate planetary gears, the rail is released and pivoted about the fixed axle.
  • The rail serves as a planetary wheel support on which the planetary wheels are positioned and represents the input of the gear.
  • The sun wheel forms the output of the gear.
  • It is driven by hand.
  • The transmission ratio can be determined by counting the full revolutions.

Technical Details:


  • investigation of single-stage or multistage spur gears
  • investigation of planetary gears
  • driven by hand
  • determine the transmission ratio by counting the revolutions of the driven gears
  • base plate with storage for components

Technical Data:

  • Gears
    • quantity: 4
    • plastic
    • module: 1mm
    • number of teeth: 40, 60, 80 and 100

Dimensions & Weight:

  • L x W x H: 380x120x100mm
  • Weight: approx. 3kg

Learning Objections/Experiments:

  • investigation of single-stage or multistage spur gears
  • investigation of planetary gears
  • determine the transmission ratio

Scope of Delivery:

  • 1 kinematic model
  • 1 set of instructional material


  • investigation of planetary gears



Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.