Disk Brakes - Torque and Force
Forces and torque activated with disk brakes. Calculate braking torque capacity and required pad pressure.
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 = coefficient 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)
Where:
- p = pressure (Pa)
- A = pad area (m²)