Bus/Coach Drum Brakes

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 Drum Brakes


Through our joint venture business Master Sistemas Automotivos Ltda., we offer bus and coach brakes and components to the South American market.

S-cam Master brakes are mechanically driven by an s-shaped camshaft. The movement of the cam determines the opening of the shoes in one of the ends. The other end remains secured and sustained by retaining springs. The return spring nearest the camshaft is responsible for the contact between both parts and also for the return of the shoe to its initial condition after the brake is applied. (Pictured above is our S-cam 325 HD mm brake, also available in tubeless.)


 Features and Benefits


S-cam brakes meet the industry requirements, assuring the reliability of a world-class original product.

To ensure performance and resistance requirements, s-cam brakes are tested and certified at Meritor labs.

Brake shoes are adjusted for better setup of linings, providing greater strength, no cracks and even lining wear.

All components subject to friction are thermally treated for greater resistance and durability.

S-cams are are treated with electrophoretic paint (e-coat) for increased resistance to corrosion and maximum durability of components.

Internal components are sealed for reduced internal contamination and corrosion and increased durability.