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Products | Theory of Machines and Properties of Materials | Theory of Machines | TM 236

TM 236

Drum Brake Friction Apparatus

Technical Description

The table unit is used for investigating a drum brake. The objective is to determine the coefficient of friction. A ball bearing mounted anodised aluminium drum is driven by a rope around its circumference loaded with weights. A further weight operates the ball bearing mounted eccentric cams via a rope and thus the brake shoes in the drum. A direct comparison of braking force to driving peripheral force is thus possible. The difference between a leading and trailing brake can be simply demonstrated by reversing the direction of rotation.

Learning Objectives / Experiments

· Determination of the friction force generated by a drum brake:
- Leading
- Trailing

Features

Demonstration of a drum brake with leading and trailing shoes

Alternative products

TM 228 -- Clutch Plate Friction Apparatus

Specification

[1] Experiment on the friction forces in a drum brake with leading and trailing shoes
[2] Direct comparison of braking and peripheral forces
[3] Usage of an industrial brake shoe
[4] Brake drum mounted on ball bearings id 180mm, od 190mm, anodised aluminium
[5] Set of weights, 2x to 20N, steel, galvanised
[6] Brake cams mounted in ball bearings
[7] l x w x h 340x160x280mm

Technical Data

Brake drum: id 180mm, od 190mm
Brake shoes: industrial automotive accessory
Set of weights: 2x up to 20N

Dimensions and Weight

l x w x h : 340 x 160 x 280 mm
Weight : approx. 11 kg

Scope of Delivery

1 complete friction measurement apparatus,
2 sets of weights, 1 instruction manual

Order Details

040.23600 TM 236 Drum Brake Friction Apparatus