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Tag Archives: firestone

  • Firestone Style Number Changes

    MRO Shop Talk
    Expert: Andy Crowley
    Subject: Firestone Style Numbers

    On this episode of MRO Shop Talk, Pneumatic Expert Andy Crowley discusses some recent Part number changes you might see with Firestone equipment.

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  • Identification of Firestone Heavy Duty Air Spring Style Numbers

    Style numbers are the method Firestone uses to describe the form of the rubber and fabric bellows used in our air spring assemblies. This bellows style is the major contributor to the physical performance characteristics of the Firestone air spring assembly, and is the first piece of information necessary to identify a part in the field.

    firestone-air-sping-style-numberMolded into the sidewall of each Convoluted and 1T style Firestone bellows is a style number. It can take the form of up to three distinct groups of letters and numbers. First there may be a group of one to three letters, normally “K” or “AY”. This is a designation of the manufacturing entity. It is not important to your identification. Next will be a more familiar series of numbers and letters like 26C or 1T15M6. This is the style number. Finally there may be an additional letter like “E”. This is just a designation of the firestone-air-sping-style-number-2mold cavity that the part was cured in (in the case of “E” it would be the 5th mold cavity). Again, this is not important to your identification.

    Now, we need to explain a bit more about the style number itself. A convoluted part will normally be a 2 or 3 digit number, perhaps with a “-” after it. However, after all of the numbers there will be a letter like B, C, D, etc. This is just a designation of the latest design iteration. In most cases this will not affect the performance of the part since it should meet the same performance criteria in order to keep the same style number. However, for complete-ness in communication it is usually best when calling in to tell Firestone this letter if you can read it. (i.e. 22B or 22C).

    On the 1T style parts we need the whole character string (i.e. 1T15M-6). The 1T designates a heavy duty rolling part with a piston or pedestal on one end. The number after 1T refers to the basic family size of the part (i.e. 14, 15, 19, etc.) The next few letters give us specific performance characteristics, and finally the number after the “-” indicates the length of the part. This whole string is necessary to determine the style number.

  • Firestone Air Grippers - Product Spotlight

    Firestone Air Gripper End Effector Firestone Air Gripper End Effector

    The product of years of development, Air Gripper end-effectors combine pneumatic pressure control with the physical attributes of rubber. The result is an innovation that can give robotics or mechanical handling systems an important degree of touch and allow products to be handled securely and gently.   The Air Gripper end-effector collars around the product, then the sleeve inflates inwardly to form a grip around the product’s exterior. Models are available with various inflation pressures to handle light to heavy loads. This cushioned transporting can help eliminate damage, breakage, and other processing problems. Air Gripper end-effectors have already been proven in assembly, loading, shifting, conveying and many other manufacturing operations around the world.

    Firestone Air Gripper End Effector Catalog Download Firestone Air Gripper End Effector Catalog

    Air Gripper end effectors move objects of all shapes and sizes.

    • Conform to Any Shape
    • Multiple Sizes Handled with One Gripper
    • Delicate Handling
    • Wide Size Range
    • High Load Capacity
    • Non-marring Contact
    • No Lubrication Required
    • Low Cost
    • Long Life in a Dusty Environment

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  • 12 Advantages of Firestone Marsh Mellow Springs

    Firestone Marshmellow Springs Vibration Isolators Firestone Marshmellow Springs Vibration Isolators

    Firestone Marsh Mellow Vibration Isolation Springs have many advantages over other types of vibration isolators.  Here's why:

    1. Constant Vibration Isolation with Changing Loads
    The variable spring rate allows for a nearly constant natural frequency with changing loads. This results in consistent vibration isolation with variable loading.

    2. High Load Carrying Capacity
    Due to the Marsh Mellow spring’s greater deflection capabilities and load carrying influences of the fabric reinforcement, it can carry a greater load when compared to an all rubber part of the same modulus and dimensions.

    3. Excellent Vibration Isolation
    Low natural frequencies provide excellent isolation of forced frequencies in the range of 800-1200 cycles per minute (13-20Hz).

    4. Lateral Vibration Isolation
    The lateral spring rate of a Marsh Mellow spring can be less than the vertical spring rate, resulting in a lower lateral natural frequency. Marsh Mellow springs provide better vibration isolation in all degrees of freedom.

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  • Industrial Air Spring Failure Causes

    When applied and maintained properly, industrial air springs can last for long amounts of time, trouble-free of service.  Most failures are caused by a lack of suspension maintenance or improper application. Common failures are caused by misalignments, loose girdle hoops, abrasions, air spring overextension and the bottoming out of air springs.  Download Firestone's guide to common air spring failures that are usually not covered by warranty.

  • Firestone Air Springs in stock

    Firestone Air Springs

    Firestone Air SpringsNeed specifications on a certain Firestone Air Springs model? We carry 6 types of air springs that are designed and built for durability, performance and value. These air springs include: Single Convoluted, Double Convoluted, Triple Convoluted, Rolling Lobe, Reversible Sleeve and Shaped Sleeve. With this array of options we ar­e confident that you will find exactly what you need through us. offers the most reliable brands in industrial air springs. Through strict design parameters, Firestone air springs operate dependably in the toughest conditions and in many types of industrial applications. Firestone AirstrokeTM airbags and AiromaticTM polyactuators offer a short-stroke, high-force and single-acting pneumatic actuation for applications such as conveyors, lift tables and work holding devices.

  • MROstop's guide to Firestone Air Springs

    What is an Air Spring?

    Firestone Air SpringsFirestone Airstroke Air bags and Airmount Isolators offer short-stroke, high-force and single-acting pneumatic actuation for applications such as conveyors, lift tables and work holding devices. An air spring is a carefully designed rubber/fabric bellows which contains a column of compressed air. The rubber bellows itself does not provide force or support load. This is done by the column of air. Firestone air springs are highly engineered elastomeric bellows with specially designed metal end closures.  Many Firestone air springs are also available in high strength construction for higher pressures. In this case, there are four plies of fabric-reinforced rubber, with an inner liner and outer cover. The two ply air spring is standard. Each air spring bellows is identified by a style number. This style number is molded into the bellows during the curing (or vulcanization) process. Examples would be 16, 22, 313, 1T15M-6, etc... This identifies only the rubber/fabric bellows and not the complete assembly. There are several different end closure options available for most air springs; therefore, please always specify both the style number and the complete assembly order number (AON). An example would be: Style #22, assembly order number W01-M58-6180.

    So, Really...What is an Air Spring?

    Firestone developed the air spring in the late 1930's as a more efficient air spring (vibration isolator) for use in vehicle suspensions. Airide springs, as they were named, provided the means for a suspension to reduce the amount of road shock and vibration transmitted into the vehicle. Millions of miles of actual use have proven the dependability and effectiveness of the air suspension concept using Airide springs by Firestone.

    Airstroke actuators, Airmount isolators, and Airide springs are Firestone registered trademark names for one product: the air spring.  The use of the air spring (actuator, industrial isolator and vehicular isolator, respectively) determines which name is applied to it.

    All of the parts on this site may be used as Airstroke actuators (except the 1X84D-1 and 2M1A) or Airmount isolators, with two exceptions: Triple convoluted and reversible sleeve type air springs (except the 1M1A-0) should not be used as Airmount isolators without consulting Firestone. Individual Airstroke actuators and Airmount isolators are capable of generating a force or supporting a load of up to 100,000 pounds, and a stroke capability of up to 14 inches is possible.

    Using Firestone Air Springs as Airstroke Actuators

    Firestone Airstroke Actuators are like cylinders. They are different looking, and they do not work exactly like the well-known and accepted JIC cylinder. Functionally, however, air springs perform the same type of actuation tasks. Firestone Airstroke actuators have long been used in the industrial market as pneumatic actuators incorporated into new and innovative machinery designs as well as replacement actuators for existing applications that had previously used traditional pneumatic or hydraulic cylinders. These replacement markets are created by the advantages of a flexible walled pneumatic actuator that is durable, operates well in corrosive and abrasive industrial environments, easily accepts misalignment, and has a high ratio of stroke to collapsed height. Each of these features give Firestone Airstroke actuators the advantage over traditional cylinders. Why use an Airstroke actuator (rather than air or hydraulic cylinder) for actuation?

    • LOW COST - Generally, initial cost is one-half or less than conventional pneumatic or hydraulic cylin­ders of the same force capabilities. This initial cost advantage is many times greater in the larger sizes.
    • WIDE SIZE RANGE - Airstroke actuators are available in sizes ranging from 2.2 inches to 37 inches in diameter. The force capability is 100,000 pounds. Strokes of up to 14 inches are possible.
    • DURABLE FOR LONG LIFE - Airstroke actuators are a further application of Firestone's time proven Airide springs for truck and bus suspensions. The long life and durability necessary for millions of miles of heavy duty suspension use under adverse environmental conditions are also important factors in machine design.
    • NO MAINTENANCE OR LUBRICATION REQUIRED NO INTERNAL ROD OR PISTON - Airstroke actuators have no internal rod, piston, or sliding seals as do conventional cylinders. This allows for the design of Airstroke actuators into applications where dirt or grit would destroy the seals on conventional cylinders.
    • FRICTION FREE FOR - IMMEDIATE RESPONSE - Since Airstroke actuators have no sliding seals, there is no breakaway friction as with conventional cylinders
    • FLEXIBLE MEDIA - An Airstroke actuator can do its work with either a liquid or gas (Please see page 14 for acceptable media choices.)
    • ANGULAR CAPABILITY - An Airstroke possesses the unique capability of stroking through an arc without a clevis. Angular motion of up to 30 degrees is possible, along with the design advantage of generally less complex linkages.
    • SIDE LOADING CAPABILITY - Airstroke actuators, within certain limits, are not affected by side loads as are conventional cylin­ders. This misalignment capability eliminates potential rod bending, scoring, and excessive seal wear common to conventional cylinders.
    • COMPACT STARTING HEIGHT - Airstroke actuators have a low profile compared to conventional cylinders. Our smallest Airstroke actuator (2.2 inch/dia.) collapses to just 1.1 inches in height, while our largest triple convoluted Airstroke (37 inch/dia.) will collapse to a very com­pact 5.5 inches.
    • FACTORY SEALED AND TESTED - Most Airstroke actuators feature Firestone's proven concept of crimped end plates. The crimped design allows for preshipment testing and quicker installa­tion on equipment.


    Using Firestone Air Springs as Airmount Isolators

    What is a Firestone Isolator?  A Firestone Airmount Isolator is a device that prevents one object from affecting another. The Isolator allows both objects to exist in their natural state without influence from the other. With a Firestone Airmount isolator, one of the objects is allowed to vibrate without transmitting all of the energy of that vibration to the other object. For many years, Firestone has been in the business of designing and developing a wide range of mounts and supports to isolate vibrations that are detrimental to many industrial and manufacturing environments.  Why use an Airmount isolator rather than a coil spring or other type of isolator?

    • UNSURPASSED ISOLATION CAPABILITY - Airmount isolators can provide the highest degree of isolation of any type vibration isolator. System natural frequencies as low as 60 cycles per minute (1 Hertz) are available. The addition of an auxiliary reservoir can provide even lower system frequencies. In order to achieve similar results from a conventional coil spring isolator, a real deflection of 9 inches would be required.
    • CONSTANT ISOLATION EFFICIENCY - Airmount isolators are unique in that the system's natural frequency does not change significantly with changes in load. This unique feature, combined with accurate height control, will allow the use of the same Airmount isolator at each mounting point of an unevenly loaded machine.
    • ACCURATE HEIGHT CONTROL - Airmount isolators provide accurate height control through regulation of internal air pressure. This feature eliminates the fatigue and permanent set found in the use of other types of vibration isolators.
    • WIDE SIZE RANGE - Airmount isolators are capable of isolating loads of 100 pounds per mounting point to over 100,000 pounds per mounting point.
    • COMPACT INSTALLED HEIGHT - Airmount isolators can carry the loads and provide the isolation described above at installed heights as low as 2.5 inches. Coil springs providing equal isolation would require a free height of 5 to 25 inches.
    • EXTENDED EQUIPMENT LIFE - Airmount isolators extend equipment life through their superior isolation capabilities.
    • EFFECTIVE NOISE REDUCTION - Airmount isolators reduce structurally transmitted noise. Airmount isolators are also quiet in themselves, since there is no spring chatter as found in conventional coil springs.
    • VERSATILE - Airmount isolators can be used not only to protect structural members from vibrating machinery, but are also widely used to protect delicate equipment from structurally transmitted vibration.

  • Rolling Lobe Air Springs

    Rolling Lobe Air SpringRolling Lobe air springs by Firestone and Goodyear can be used as an AirStroke Actuator or an AirMount vibrationisolator (check specifications first). has informative PDF's with specifications and information on Rolling Lobe Air Springs.

  • Shaped Sleeve Air Springs

    Shaped Sleeve Air SpringShaped Sleeve air springs by Firestone and Goodyear can be used as an AirStroke Actuator or an AirMount vibrationisolator (check specifications first). has informative PDF's with specifications and information on Shaped Sleeve Air Springs.

  • Reversible Sleeve Air Springs

    Reversible Sleeve Air Spring

    Reversible Sleeve air springs by Firestone and Goodyear can be used as an AirStroke Actuator or an AirMount vibrationisolator (check specifications first). has informative PDF's with specifications and information on Reversible Sleeve Air Springs.

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