Technical Information

Technical Information

General information

In general, two brake linings act on the drum, in other words the linings are normally pressed against the surrounding drum. The power is possibly transmitted via a bowden cable, linkage, via brake fluid or compressed air.


  • Low actuation forces through internal reinforcement (servo effect)
  • Option of dispensing with brake servo unit in lightweight vehicles
  • Protected against effects of corrosion
  • Low abrasion (brake dust on the rim)
  • Longer service life than with disc brakes
  • Easy to integrate in the parking brake
  • Cost effective
  • Reduced risk of glazing on the brake linings


  • Brake lining more difficult to change than with a disc brake
  • Greater sensitivity to fluctuations in coefficient of friction
  • Poor heat dissipation
  • Low thermal resistance
  • Occurrence of fading at too high temperature