quick overview :

Slipping Friction Apparatus

Description:

A variable speed electric motor drives two rotating wheels on which a specimen bar oscillates with a single harmonic motion due to the even pressure that it exerts on each wheel in turn. The bar frequency is dependent on the coefficient of sliding friction. A number of specimen bars of different materials are provided. The distance between the two wheels can be varied. A stop watch is provided.

Specification:

• Self-contained, bench-mounted apparatus, to measure slipping friction in an oscillating system.
• Two contra-rotating `V` pulleys of variable centres distance driven by a variable speed motor.
• Frequency of oscillation of different rods supported by the pulleys enables the coefficient of friction to be determined
• Set of 5 rods and tubes in mild steel, brass and aluminium alloy.
• Variables to include weight of specimens.
• Stop watch provided.