Brake Clamp Load Formula |
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\( C \;=\; \dfrac{ \tau }{ r_e \cdot \mu \cdot n }\) (Brake Clamp Load) \( \tau \;=\; C \cdot r_e \cdot \mu \cdot n \) \( r_e \;=\; \dfrac{ \tau }{ C \cdot \mu \cdot n }\) \( \mu \;=\; \dfrac{ \tau }{ C \cdot r_e \cdot n }\) |
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| Symbol | English | Metric |
| \( C \) = Brake Clamp Load | \(lbf\) | \(N\) |
| \( \tau \) (Greek symbol tau) = Brake Torque | \(lb-ft\) | \(N-m\) |
| \( r_e \) = Effective Radius | \(in\) | \(mm\) |
| \( \mu \) (Greek symbol mu) = Friction Coefficient of Disk Lining Material | \(dimenionless\) | \(dimenionless\) |
| \( n \) = Number of Friction Faces | \(dimenionless\) | \(dimenionless\) |
Brake clamp load is the force exerted by a brake caliper to squeeze the brake pads against the rotor (or disc) in a disc brake system. It’s the clamping pressure that creates friction to slow or stop a vehicle. Measured in pounds or newtons, it depends on factors like hydraulic pressure, caliper piston size, and the number of pistons. Higher clamp load increases braking force but requires more pedal effort or hydraulic power.
