What causes a grinding from wheel and burning smell?

A grinding noise from a wheel, accompanied by a burning smell, typically indicates a problem with the brake system, such as worn brake pads or a malfunctioning brake caliper. When brake pads wear down excessively, the metal backing plate can grind against the rotor, creating noise and heat, which may lead to a burning smell from overheating components. Additionally, issues with wheel bearings or a lack of lubrication can also cause grinding sounds. It's crucial to address these symptoms promptly to avoid further damage or safety hazards.