Frequently asked questions – Firestone

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Other FAQ documents :
a	General Airspring FAQ
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1	PDF Downloads
Q	What is the North American Imperial Aftermarket Truck & Trailer Replacement Guide?
	A book with more than 200 pages, including Truck, Trailer, Cab, Seat and Miscellaneous automotive applications. Has diagrams of each airspring giving measurements of Top, Bottom and side views with OEM airspring numbers. Also has extensive cross references by Manufacturer and Goodyear. Covers American (Imperial) Vehicles like Freightliner, Fruehauf, Hendrickson, Kenworth, Mack, Navistar, Neway etc.
Q	Whatis the North American Bus Replacement Guide?
	A book with around 50 pages, including air springs used on Busses. Has diagrams of each airspring giving measurements of Top, Bottom and side views with OEM airspring numbers. Also has extensive cross references by Manufacturer. Covers Busses used in North America like Man, Neoplan, Scania, Volvo etc.
Q	What is the Engineering Manual and Design Guide?
	A book with around 100 pages, including Airstroke Actuators and Aimount Isolators (Air Springs). Primarily aimed at Engineers, the book has a lot of usefull general information on airsprings as well as sections on Actuation and Vibration isolation. It has a 2 page summary of general information about each airspring style, called the Airstroke/Airmount Selection Guide and a long section with Individual Air Spring Data Pages We have included these Data Pages as individual downloads on our Firestone web page. The Firestone Airspring Selection Guide is an extract of the Engineering manual. These documents are available in Metric or Imperial units.
Q	What is a Marsh Mellow?
	A Marshmellow is the trade name of a fabric and rubber spring developed by Firestone Industrial Products. Rubber springs have long been a subject of interest in the vehicular suspension and industrial application fields because of their reliability, corrosion resistance, low cost, and basic simplicity. The concept has been tried with varying degrees of success over the years. The major obstacle to solid rubber springs has been that to obtain the load requirements for many applications, solid rubber springs were either physically too large, or became unstable laterally when they were made long enough to provide good isolation. The concept of “stacking” rubber springs answered the latter problem, but introduced the need for complicated mechanical guide systems to control the lateral movement. The Marsh Mellow ® fabric and rubber spring solves this basic problem and provides a new and unique way to make use of the many advantages of rubber as an isolator. The basic construction of the Marsh Mellow® spring includes a solid rubber core with a hollow center, and fabric reinforced body. The controllable variables of this construction are the keys to the extreme design flexibility that the spring offers.
Q	What is the Marshmellow Design Guide?
	A book with around 60 pages, including Marsh Mellows with Metric and Imperial information. The book layout is very similar to the Air Spring Engineering Design guide above.
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2	Firestone Cab Mounts
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3	Firestone Rollover Sleeves
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