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Search TiresQ/A ArchivesAugust 2008
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Tim Miller Tim Miller has been with Goodyear for over 30 years. He spent 8 years as a tire design engineer before taking positions as a technical representative to original equipment customers Freightliner...more»»
Retreaded Tires I have been experiencing resistance when I try to encourage our fleet manager to purchase retreaded tires for our utility trucks. Any suggestions to help convince our Fleet Managers that retreads are safe and many times better than a new tire? Retreads are used by thousands of fleets in many different vocations within the trucking industry. If a tire is retreaded properly, it provide very similar service to a new tire at a lower cost. Retreading is a form of recycling, certainly a good thing. The important issue is having retreading done by a good retreader who performs quality work and stands behind the finished product.
Nitrogen filled truck tires. Just wondering if you could comment on the Pros and Cons of using Nitrogen to fill truck tires rather than plain old air. Does Goodyear or for that matter the Commercial Tire Industry recommend using Nitrogen over Air in commercial truck tires? Any additional reference materials you could provide me on this subject would be appreciated. I attended a meeting of reps from all the major tire companies. The meeting was not about nitrogen inflation but, the subject did come up. It was generally felt that there was little data to support the advantages of nitrogen inflation. It certainly does not hurt anything. Do the benefits outweigh the cost? Tire experts feel that question is still unanswered.
Steering Tire requirements? Are there certain requirements for steering tires used on commercial vehicles? The CVSA (Commercial Vehicle Safety Alliance) publishes a book of truck inspection guidelines for North American commercial trucks. For steer tires, the most obvious requirement for steer tires over all other tires on a vehicle is the tread depth. Steer tires must not be worn to less than 2/32nds for any two adjacent grooves but all other tires may be worn to 1/32nds. For more information, you may want to visit the CVSA website http://www.cvsa.org/
Tire Wear 1 Tire replacement is expensive. Is it OK to replace one tire without replacing a whole set of drive tires at one time? Replace an individual tires as needed? It is OK to replace drive axle tires as needed but, always try to match the diameter of the two tires in a dual assembly within 1/4 inch. The easiest way to do this is to use the same brand and type of tire that is worn about the same tread depth.
Tire Longevity How long does a tire last with size 11R22.5 or 12R22.5 mounted in a tractor head carrying 40 tons of load. How many kilometers it can travel with that load before it will wear out? People ask this question often. There is no simple answer because there are way to many factors that affect tire wear to predict when a tire will wear out. All of the following affect wear: |
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