A specialized lathe reshapes worn brake rotors, restoring their smooth surface and proper thickness. This process, often performed in automotive repair shops, corrects imperfections like lateral runout and thickness variation, which can cause vibrations and reduced braking performance. An example application involves mounting the rotor onto the lathe and utilizing a cutting tool to remove a thin layer of metal, creating a uniform surface.
Restoring rotors contributes significantly to vehicle safety and optimal braking efficiency. By correcting imperfections, the process minimizes brake noise and pedal pulsation while maximizing pad-to-rotor contact, improving stopping power and extending the lifespan of brake components. Historically, this machining process replaced the need for frequent rotor replacement, offering a more economical solution. This practice continues to offer cost savings and resource conservation benefits.