Mary has over 20 years experience as the editor of our Malaysian sister magazine, The Tyreman. Based in Kuala Lumpur, she writes articles for us on the Malaysian and other South East Asian markets.
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Brake pads might appear to be simple components but they play a critical role in the braking system and have a complex manufacturing process. Brake pads are manufactured using a combination of ingredients; these include Fibres, Functional Fillers, Friction Modifiers and Resin Binders. Different driving styles and vehicles require different amounts and mixes of each ingredient to provide full confidence when braking.
There are three main types of friction material used for the manufacture of brake pads. They are Non Asbestos Organic (NAO), Semi Metallic (Semi-Met) and Low Metallic (Low-Met), and each material is suited to different applications.
This article would discuss NAO formulations, also known as ceramic materials. These are used in Bendix General CT and 4WD/SUV brake pads. Ceramic brake pads have low levels of noise, dust, and rotor wear, while providing a consistent pedal feel.
Bendix NAO brake pads use a combination of synthetic glass fibres, aramid fibres and natural organic fibres as the main reinforcing ingredients. Braking performance for each car make and model is further fine-tuned by adding organic or inorganic modifiers.
The manufacturing process of the NAO brake pads is complex, with heat and pressure applied cyclically up to 10 times during the procedure. Bendix says its production methods dramatically increase the lifespan and durability of NAO brake pads. The ingredients are carefully picked to finetune braking performance for each individual car model.
When braking, a Bendix NAO brake pad applies a coating to the rotor called transfer film. The pad uses this film for 90 per cent of everyday braking work, to protect the brake disc from wear. The transfer film constantly gets worn away and built up again through general, everyday city or country driving.
The Bendix General CT brake pads are highly suited to small to medium sized cars that do daily driver duties. For heavier 4x4s, all wheel drives and SUVs, Bendix says its 4WD/SUV brake pads provide the required performance for extreme conditions and on road feel.
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