1  -  6  of  6

August 2015, - WebXclusive

SmartWay List Swells with Cheap Chinese Tires

Will an increasing number of cheap imported tires cause a rise in the amount of roadside tire debris? Photo by Jim Park.

By Jim Park

A massive influx of Chinese tires, some costing $100 or less, has flooded the U.S. EPA's list of SmartWay verified tire in the past year. What does this mean for tire retailers and retreaders, fleets and even the enforcement community?

Tags: China, EPA SmartWay, Tires

January 2015, - WebXclusive

Coming Soon: Inflation Systems for Drive Axles

A schematic of Dana's Central Tire Inflation System, which is similar to the system the company is developing for the on-highway market.

By Jim Park

Drive axle inflation systems might not be the Holy Grail of truck maintenance, but they are in a position to cure a vexing problem. Tire pressure maintenance is time-consuming and costly, but there's no debating the savings from properly inflated tires. At least four manufacturers have systems in development. At least one is already available.

Tags: Dana Holding Corp., Automatic Tire Inflation Systems, Airgo, Tires

January 2014, - Department

Keeping Your Wheels in the Game (updated)

Pictures are worth a thousand words, they say. What sort of a message do the wheels on this trailer convey about its owner?

By Jim Park

Back in 1984, the Occupational Safety and Health Administration issued a regulation requiring that truck wheels be stripped of rust and debris before mounting a tire. Easier said than done, the industry moaned at the time. Labor was less costly then, but wire brushes and elbow grease weren’t going to cut it.

Tags: OSHA, Goodyear, CSA, TMC, Tires, Wheels, IMI, Wheel refinishing, Maxion Wheel

November 2013, - Feature

Getting the Lead Out of Tire Weights

True rotation of a several-hundred-pound mass and high speeds requires balancing, not just of the tire, but the entire rotating mass, including the hub, brake drum, wheel and tire.

By Jim Park

Beware the lead tire weight cops. They are out there and working in six states, with several more states looking at banning lead weights. Here's a look at the alternatives to lead in weights -- and alternatives to weights themselves.

Tags: Tires, Wheels

October 2013, - Feature

Keeping Your Wheels On

A calibrated torque wrench is required to set the recommended torque on wheel fasteners. Over-torqueing with an impact wrench can stretch and weaken the studs.

By Jim Park

There’s no mystery to why wheels come off trucks. The National Transportation Safety Board in 1992, and Ontario’s Ministry of Transportation in the late 1990s, both concluded after exhaustive studies that inadequate maintenance was the root cause of a series of fatal wheel separation incidents.

Tags: TMC, NTSB, Tires, Wheels, Accuride, Timken, Spicer, ConMet, Ontario Ministry of Transportation, Wheel-offs

July 2013, - Feature

Wheel-End Problems: Beyond the Obvious

Customers complaining that bad tires are suffering irregular wear? The problem may lie somewhere in the wheel-end. Photo by Jim Park.

By Jim Park

Wheel-ends function as a system: the spindle, hub, and rim (or wheel), as well as the bearings and the fasteners, all work in concert to keep the wheels in place and the tires running straight and true. If one part of the system is out of whack, the results will be seen and felt elsewhere in the system - usually at the tires themselves.

Tags: In the Shop, Tires, Wheels



We offer e-newsletters that deliver targeted news and information for the entire fleet industry.



The expert, Mark Betner from CITGO, will answer your questions

View All



The expert, Rence Oliphant from Hendrickson, will answer your questions

View All