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Forces and torque activated with disk brakes.
The torque capacity of a disk brake with two pads can be expressed as
T = 2 μ F r (1)
T = braking torque (Nm)
μ = coeficient of friction
F = force on each pad (N)
r = mean radius (from center wheel to center pad) (m)
Required pad pressure can be expressed as
p = F / A (2)
p = pressure (Pa)
A = pad area (m2)
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