BRAKE DRUM AND SHOES
Production of MILES drum castings using mold compaction technology
Molds for casting MILES brake drums are produced on modern automatic molding lines, ensuring the production of castings of high dimensional accuracy, low consumption of molding sand and metal, as well as reduced costs for subsequent mechanical processing. The use of this technology does not require the use of expensive metal models and model plates, which ultimately determines the low cost of the finished product.
Typically, smaller passenger cars employ drum brakes in their rear braking systems, which also function effectively as parking brakes. In some larger vehicles, these drum brakes can be integrated with disc brakes.
In this setup, friction is created by pressing brake linings against the inner surfaces of rotating drums attached to the wheels. As the drums rotate, they exert greater pressure on the brake shoes, slowing down the vehicle.
Drum brake designs vary based on how the brake shoes are applied. The leading/trailing type is the most common in modern passenger cars. In this design, the leading shoe moves in the direction of rotation when pressed against the drum, while the trailing shoe moves against the rotation and is typically linked to the parking brake cable.
Homogeneous structure
MILES brake drum castings are produced in horizontal flask molds. Compared to analogues that are cast in vertical molds, this method ensures uniform simultaneous solidification and cooling of the castings, eliminating the appearance of shrinkage looseness, cracks, cavities, warping and other defects.
Brake drum bearings
Bearings for assembling MILES brake drums are of the highest precision class. They eliminate radial runout and noise at high speeds, loads and temperatures. They completely eliminate jamming, have a high degree of protection against contamination and create optimal conditions for long-term use.
MILES drum brake shoes guarantee stable and effective work with MILES brake drums, as well as with drums from other manufacturers. Characterized by high quality and safety, reliable operate in various road conditions and loaded operating modes.
Modern friction materials used in the production of MILES drum brake shoes make it possible to maintain a high coefficient of friction and a minimum level of wear under conditions of a wide range of speeds and loads and temperatures. This helps achieve low noise levels and reduce dust on brake pads.
The multi-component asbestos-free composition of MILES friction linings from fiber materials, fillers, metal components, additives and binders is specially selected for quiet and reliable operation, effective heat dissipation and prevention of thermal deformation.
Drum brake pad characteristics
- Does not contain asbestos;
- Optimal friction coefficient (μav=0.4);
- High sensitivity of brakes;
- Exact match to installation sizes;
- No unwanted noise and vibrations;
- Not subject to operational curvatures and bends;
- Increased corrosion protection;
- Long service life.
