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Tim Miller
Marketing Communication Manager
Goodyear
(330) 796-7922
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»»
tread wear
Posted by Ken from Cumming, GA, US on February 8, 2010
I have a small fleet of class 8 trucks that I haul bulk liquid tankers with. My question is this. I’v been running Goodyear G395 LHS tires on the steer axle, I’m geeting more tread wear on one tire than the other. Tires have liquid balance in them and the air is checked reguraly and filled to 105 psi. The tires have about 55000 miles on them.
If the faster wearing tire is the left front, it is a normal condition. There are a number of theories about this but, I think it is because the left front tire is directly connected to the steering links but the right one is connected via the cross link. When driving down a straight piece of highway, small corrections to the trucks direction of travel.
Commerical Truck Tire Technical Data
Posted by Bob from Hanover, PA, US on February 3, 2010
I’m with RH Sheppard company, a steering gear supplier to the heavy vehicle industry. We have a program that estimates steering gear torque requirements. It uses steering geometry, axle and tire data to estimate the torque.
I have a specific need for the following information for 245/75R22.5 G G149 tires.
- Static Loaded Radius.
- Net contact patch area
- Patch length (longitudinal)
- Patch width (transvers)
I would also be interested if there is a website where we can obtain this information for your commercial products. From time to time we have new tires to add to our data base.
Thanks,
Bob
You can find answers to all your dimensional questions and engineering data at the following web address http://www.goodyear.com/truck/
“Islanding”
Posted by Robert from Country Club Hills, IL, US on February 1, 2010
I am a novice at best when it comes to tires so excuse me if this is “common knowledge”; I had never heard the term islandind before I was told that was what the wear pattern that was becoming more pronounced on my steers was called. What causes this and how do I best prevent it? I have an “07 Hino 338 expediter and the Bridgestone steers that came with it lasted little more than a year and 100k miles. I replaced them with Michelin xze and slowly I am seeing the same wear outside that eventually doomed the factory set. While I check pressure often I dont do my own service, is there something that I need to request/insist on when getting a pm?
If your tires are "islanding", just put on some Jimmy Buffett music, sit back and relax. Seriously, what you decribe is usually known as cupping or scallop wear. The TMC Radial Tire Conditions Analysis Guide suggests that the cause can be: Out-of-balance, improper mounting, lack of shock absorber control, loose king pins, or improper bearing adjustment. This book also says that underinflation can cause this. Since it happened on 2 sets of tires from 2 different manufacturers, I think it is safe to assume that the problem is one or more the items listed. I suggest you have the truck inspected by a reputable alignment expert and put on a new set of Goodyear tires (G662 RSA would probably be best).
tire wear 1
Posted by Francine from MONTREAL, QC, CA on February 1, 2010
why does my tration inside tire on the right side wear faster than the others. the wear is even and it’s like that on the mahjority of my units.
I consulted with Mike Beckett of MD Alignment on this one. Here is what Mike says.
"There are three very common causes of this complaint. First if the vehicle is being overloaded, axle flex can lead to over load and premature wear on the inside tire. Second, loose wheel bearings can produce the same condition. Both of these patterns tend to be preceded by inside edge wear on the inside tire close to the frame. Third is under inflation on the inside tire. Most frequent? Loose bearings."
Tire Discontinued??
Posted by Barbara from Lutz, FL, US on January 28, 2010
Has Goodyear G149 RSA 11R 22.5 tire been discontinued? If so, with what type of tire?
We have replaced the G149 RSA tire in that size with two tires. If the type of service is considered "high scrub" with lots of turning (think of a school bus), then you want to use our G661 HSA. If the type of service is mainly on highways in what we term a regional haul type opperation, you want our G662 RSA with Fuel Max.