Wheel and Differential Axle Apparatus TM 122

Wheel and Differential Axle Apparatus

Type: TM 122
Name: Wheel and Differential Axle Apparatus
Technical Description

  The model demonstrates the conditions of equilibrium on a differential pulley block. Three anodised aluminium pulleys of different diameter are fitted to a shaft mounted on ball bearings. The forces act, on the one hand, directly on the peripheral of the largest pulley, on the other hand, via a loose pulley on two smaller pulleys. Easy to interchange weights permit the load to be varied such that equilibrium is obtained. The model is intended for wall mounting.


Learning Objectives / Experiments
- equilibrium of forces
- equilibrium of moments
- relationship between force reduction and cord travel

* Equilibrium of forces and moment1
* Demonstration of the force reduction on a differential pulley block

Alternative products
TM 110.02 -- Supplementary Set - Pulley Blocks
TM 121 -- Wheel and Axle Apparatus
TM 123 -- Spur Gear Lifting Apparatus

[1] experiment on the equilibrium of forces and moments on a differential pulley block
[2] 3 pulleys made of anodised aluminium
[3] ball bearing mounted steel shaft
[4] anodised aluminium base plate

Technical Data

Pulley diameter
- D=250mm

- D=100mm

- D=50mm 
Loose pulley

- D=75mm


- 2x 1N (hanger)

- 4x 0,5N

- 4x 1N

- 4x 2N

- 4x 5N


Base plate: WxH: 300x250mm

Dimensions and Weight LxWxH: 300x280x250mm
Weight: approx. 15kg Scope of Delivery

1 support with pulleys

1 set of weights
1 loose pulley

2 cords

1 instruction manual

Order Details

040.12200  TM 122  Wheel and Differential Axle