brake disc

Wheel's friction surface

A brake disc is a flat, circular metal plate attached to a vehicle's wheel that slows or stops rotation when brake pads clamp against it.

Also called a rotor.

Disc brakes have largely replaced drum brakes on modern cars, especially for front wheels: The mechanic said the brake discs were warped and needed replacing.

Related
  • rotorSpinning mechanical assembly
  • caliperTool measuring thickness or diameter
  • padCushioned writing surface
  • frictionResistance between touching surfaces
  • stoppingCeasing to continue

stopping power · squealing · heat · heat dissipation · metal · wheel · hub · vented · slotted · drilled · two piece · warped · grinding · ABS · ceramic · rust · iron · spin

Categories
Opposites
braking system type

brake discbrake drum

Cylindrical stopping mechanism component

drum brake · drum

functional role in braking

brake discbrake pad

Friction material for stopping

brake drum · brake caliper · brake shoe · brake lining · brake pedal

acceleration vs. deceleration components

brake discaccelerator

Speed control mechanism

throttle · gas pedal · engine · drive shaft · transmission

Family

brake, disc, brakes, braked, braking, discs, disk, disks, discus

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G