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TM 123 Spur gear unit

FEATURES:

 

  • Setup and principle of toothed gearing mechanisms

DESCRIPTION

Technical Description

The mechanism demonstrates the relationship between the ratio of the number of teeth on spur gears and the transmission ratio of gears. With straightforward experiments, the torque conversion in gear wheel pairs and the efficiency of a gear unit are investigated.

The model is intended for wall mounting. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

Learning the key variables and correlations of a spur gear
- velocity ratios of spur gears
- gear with intermediate wheel or two-stage gearing
- influence of friction on transmission
- determining efficiency

FEATURES

Specification
[1] demonstration and student experimental unit on setup and principle of toothed gearing mechanisms
[2] 4 galvanised steel gear wheels
[3] 2 anodised aluminium cable pulleys
[4] 2 sets of weights 
[5] ball bearing-mounted gear wheels and pulleys
[6] anodised aluminium base plate 

Technical Data
4 gear wheels
- 2x D=126mm, 84 teeth 
- 2x D=42mm, 28 teeth  
- modulus: m=2mm

Driving pulley radius: 35mm

Set of weights
- 2x 1N suspended
- 2x 0,25N
- 1x 0,5N
- 2x 1N
- 2x 2N
- 2x 2,5N

Base plate

- LxWxH: 350x150x10mm 


Dimensions and Weight
LxWxH: 350x70x150mm
Weight: approx. 5kg


Scope of Delivery
1 gear unit, mounted on base plate
2 sets of weights
1 set of instructional material

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