Input Parameters

Results

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Single Piston Area
in²
--
Total Piston Area
in²
--
Clamping Force
lbs
--
Friction Force (both pads)
lbs
Note: Multi-piston calipers distribute clamping force more evenly across the pad for consistent wear. Differential bore calipers use smaller leading pistons.

Reference

Piston Area = pi x (Diameter / 2)² Total Area = Single Area x Number of Pistons Clamping Force = Line Pressure x Total Area Friction Force = Clamping x mu x 2 (both sides) 1 mm = 0.03937 in