Pidurikettad

Pidurikettad are components of braking systems used in vehicles to convert kinetic energy into heat through friction. They are typically discs attached to wheel hubs, around which brake calipers and pads operate when the driver applies the brake pedal. In most modern systems the rotor is driven by the wheel, and the caliper squeezes friction material against the disc to slow or stop rotation.

Construction and materials vary. Most rotors are made of cast iron for durability and heat handling, while high-performance or luxury applications may use steel alloys or carbon-ceramic composites. Rotors can be solid or ventilated, with many designs incorporating vanes to improve cooling. Some rotors are cross-drilled or slotted to aid heat dissipation and gas expulsion, though these features can influence wear and noise and are chosen according to use case.

Operation involves hydraulic or mechanical actuation. When the brake pedal is pressed, hydraulic pressure (in modern systems) forces the caliper to press the brake pads against the disc. The resulting friction converts the vehicle’s kinetic energy into heat, which must be dissipated to maintain braking performance and prevent fade.

Maintenance and wear are important considerations. Rotor thickness and surface condition must meet manufacturer specifications, and pads should be replaced before the rotor wears to an unsafe limit. Warping, scoring, or excessive heat damage may require resurfacing or replacement. Compatibility between rotor, pad material, and wheel hub is essential to ensure proper mounting and braking performance.

Safety and performance depend on correct installation, torque, and periodic inspection. Proper rotor and pad selection, along with attention to heat management, contribute to reliable braking across driving conditions.