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TM 200 Fundamentals of Mechanical Friction
Education / GUNT Hamburg / Engineering Mechanics and Machine Elements / Statics /

The unit is used to determine coefficients of friction, it provides fundamental experiments relating to static and dynamic friction. Two solid bodies are moved against each other in uniform manner. The friction forces occurring in the process are measured.

  One material under investigation is connected to a force gauge and remains at rest on the surface of the paired material which is driven by a motor and slides beneath the friction body. Two sliding speeds can be selected. The change in normal force is effected by additional weights. 
  The various elements of the experiment are clearly laid-out and housed securely in a box.

Learning Objectives / Experiments

- Difference between static and dynamic friction 
- Friction forces as a function of
  * normal force, material pairing, size of contact area
  * sliding speed (relative speeds of the paired materials)
  * surface properties of the friction partners
- Determination of friction coefficients

[1] Fundamentals of mechanical friction
[2] Friction body and force gauge stationary, supporting friction surface motor-driven
[3] 2 friction bodies each with 2 different surfaces
[4] 2 supporting friction surfaces with a total of 3 different surfaces
[5] 2 cable drum driving speeds
[6] Force gauge overload-proof, with clearly legible transparent dial
[7] Box to house the components
Technical Data

Supporting surfaces: Al / felt, PVC
Friction body: smooth / rough (Al), brass / felt
Driven by synchronous motor
- driving speeds: 23.5cm/min; 47cm/min
Force gauge

- measuring range: 0...2N, graduations: 0.1N
Weights: 8x 0.5N

Dimensions and Weight
l x w x h: 650 x 150 x 100 mm
Weight: approx. 4 kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery
1 experimental unit, 1 set of weights, 2 friction body, 2 supporting friction surfaces, 1 box with foam inlay, 1 set of instructional material
Order Details

040.20000  TM 200  Fundamentals of Mechanical Friction