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Clutch Plate Friction Apparatus (SMT-MM-29)
Self-contained, wall mounted.
To enable determination of coefficient of friction and minimum
torque to maintain rotation.
Interchangeable brake lining friction material.
3 diameters of friction plate to be supplied.
Torque application to be applied using cord and hangers.
Variable plate pressure using calibrated weights supplied.
The wall mounted apparatus comprises a lower stationary plate attached to a sturdy wall
mounting bracket. On top of this stationary disc sits an upper aluminium alloy plate whose
shaft rotates in ball bearings but which is in direct contact with the stationary plate. Sandwiched
between the lower and upper plate are friction discs, of 3 different sizes. Each disc is positioned
in turn. The minimum force on the friction disc is the self-weight of the upper plate, but the
contact pressure can be increased by adding weights to the upper plate. Pure torque is applied
to the upper plate through two loaded cords and pulleys. The cords wrap around a groove in
the upper plate. Three interchangeable friction discs are supplied of different diameters. Each
one sits onto location pins in the lower plate. A set of calibrated weights is supplied which
enable the loading force to be varied and applied torque to be adjusted also.