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# Disk Brakes - Torque and Force

The torque capacity of a disk brake with two pads can be expressed as

T = 2 μ F r                                  (1)

where

T = braking torque (Nm)

μ = coeficient of friction

F = force on each pad (N)

Required pad pressure can be expressed as

p = F / A                            (2)

where

p = pressure (Pa)

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