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GL 105 Kinematic model: gear drive



  • Impressive demonstration of the relationship between the number of gear teeth and the transmission ratio of gear trains


Technical Description

This benchtop unit conveys the relationship between the number of gear teeth on spur gears and the transmission ratio of gear trains. The unit consists of a metal base plate with a fixed axle and a rail made of steel. Two further axles can be clamped to the rail in any position. In this way it is is possible to construct one and two stage gear trains with any combination of gears. By undoing a locking pin, the rail can be swivelled around the fixed axis providing a demonstration of planet gear trains. Drive pins couple the gears. Four plastic gears are included with the unit. A plastic box is used to store the parts not in use.

Learning Objectives / Experiments

- Investigation of single-stage or multistage spur gears
- Investigation of planetary gears
- Determine the transmission ratio


[1] investigation of single-stage or multistage spur gears
[2] investigation of planetary gears
[3] driven by hand
[4] determine the transmission ratio by counting the revolutions of the driven gears
[5] base plate with storage for components

Technical Data
Plastic gears
- modulus: 1mm
- number of teeth: 40, 60, 80, 100

Dimensions and Weight
l x w x h : 380x120x100mm
Weight : approx. 3 kg

Scope of Delivery
1 complete gear trains model
1 instruction manual

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