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The first asbestos brake linings were developed in 1908 by Herbert Frood. [1] Although Frood was the first to implement the use of asbestos brake linings, the heat dissipation properties of the fibres were tested by various scientists, including materials chemist Gwilym Price, who did most of his research and testing at Cambridge, United ...
Friction Lining Type WVA-Numbers Drum Brake Linings - Cars 10000 to 14999 Drum Brake Linings - Commercial Vehicles 15000 to 19999 Disc Brake Pads - Cars 20000 to 25999 Shoe Assemblies 26000 to 27999 Disc Brake Pads - Commercial Vehicles 28000 to 29999 Clutch Facings 30000 to 34999 Friction Plates 35000 to 37999
However, as the serious health-related hazards of asbestos eventually started to become apparent, other materials had to be found. Asbestos brake pads have largely been replaced by non-asbestos organic (NAO) materials in first world countries. [9] Today, brake pad materials are classified into one of four principal categories, as follows:
Mac's Spring & Brake Service shop, with Raybestos brakes (ca. 1930-1945). In 1906, Raymond and Law invented the woven brake lining, an important innovation in automotive brakes. From 1919 to 1989 Raybestos brand was manufactured by Raymark Industries, Inc, of Stratford, Connecticut. Raymark Industries filed for Chapter 11 bankruptcy in 1998. [2]
composite materials; asbestos replacement (e.g. brake linings) hot air filtration fabrics; tires, newly as Sulfron (sulfur-modified Twaron) mechanical rubber goods reinforcement; ropes and cables [16] V-belts (automotive, machinery, equipment, and more) wicks for fire dancing; optical fiber cable systems; sail cloth (not necessarily racing boat ...
Bullet-proof body armor, helmets, brake pads, ropes, cables and optical fibre cables, etc. and as an asbestos substitute Mylar: Polyethylene terephthalate film: High strength and stiffness, less permeable to gases, almost reflects light completely: Food packaging, transparent covering over paper, reflector for rollsigns and solar cooking stoves ...
[citation needed] All brake linings are cured under mechanical pressure following a heating and cooling curve backstroke, heating the friction material up to 232 °C (450 °F) to "cure" (cross-link) the phenolic resin thermoset polymers: There is no melting of the binding resins, because phenolic resins are thermoset, not thermoplastic. In this ...
Ferodo was the first company to use asbestos for brake linings and developed the first modern brake friction materials. [3] Ferodo UK became part of Turner & Newall in 1926. It had a factory at Chapel-en-le-Frith and in 1964 opened another at Caernarfon. [4] In 1998 Turner & Newall was acquired by the huge automotive group Federal-Mogul. [5]
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