BRAKE PADS

BRAKE PADS

• HISTORY

The D-Brake liquid-cooled driveline brake (LCDB) is a supplemental brake, designed as a solution for the inevitable thermal problems associated with braking. The D-Brake LCDB is a driveline brake which utilizes the vehicles cooling 
system. 
When disc brakes first appeared on production cars in the 1950s, asbestos was used in brake pads. Asbestos brake pads were popular because they dealt with high heat very well and the health effects of asbestos weren't known.

Ceramic pads have replaced semi-metallic brake pads in many applications. First used on production cars in the mid 1980s, ceramic brake pads use copper instead of steel to conduct heat away from the rotor. Ceramic brake pads provide better stopping power and less brake fade than semi-metallic pads. The brake dust from ceramic pads is light colored and doesn't stick to wheels, which means you won't get any of that black dust covering your wheels.

• INVENTORS/discoverer

• The Scottish car company Arrol-Johnston fitted four-wheel brakes to the 15.9 hp model they produced in late 1909/early 1910. In 1911 the company no longer fitted four wheel brakes to their models.
  
• In 1910 Giustino Cattaneo of the Italian Isotta Fraschini Company designed a four wheel brake system. A patent was granted in February of that year.
  
• A year later the system was fitted to the new Isotta Franschini Tipo KM4 production model. 50 of these carswere built between 1911 and 1914. 

• At the January 1923 New York Automobile Show only two manufacturers, Duesenburg (hydraulic brakes) and Rickenbacker (mechanical brakes) offered cars with four-wheel brakes.
  

• ELEMENT COMPOSITION

For many years straightforward asbestos was viewed as having an optimal performance in all five categories.

1. Non-metallic materials - these are made from a combination of various synthetic substances bonded into a composite, principally in the form of cellulose, aramid, PAN, and sintered glass. 
2. Semi-metallic materials - synthetics mixed with some proportion of flaked metals. These are harder than non-metallic pads, and are more fade-resistant and longer lasting, but at the cost of increased wear to the rotor/ drum which then must be replaced sooner.Semi-metallic materials - synthetics mixed with some proportion of flaked metals. These are harder than non-metallic pads, and are more fade-resistant and longer lasting.
3. Fully metallic materials - these pads are used only in racing vehicles, and are composed of sintered steel without any synthetic additives. They are very long-lasting, but require even more force to slow a vehicle and are extremely wearing on rotors. They also tend to be very loud
4. Ceramic materials - Composed of clay and porcelain bonded to copper flakes and filaments, these are a good compromise between the durability of the metal pads and the grip and fade resistance of the synthetic variety

• GOOD / BAD EFFECTS

• Good braking at both low and high speeds

• Light weight

• No electrical draw

• No dangerous electromagnetic fields

• Very low parasitic losses

• Anti-skid protection

• Braking cruise control

• Simple installation

• The material's ability to resist brake fade at increased temperatures