Marion, Ohio—The National Tractor Pullers Association and Doctor Preload, a division of Temper Axle of Fonda, New York, have announced the renewal of the company’s sponsorship of the Association’s Grand National Super Semi Truck Division.
Doctor Preload bearing adjustment tools eliminate all endplay from wheel bearings on heavy duty truck and bus axles while measuring preload forces all the way through the adjustment process and the final preload setting. The result is significantly reduced tire and wheel end wear and money saved by trucking and transportation companies.
Doctor Preload is a product of Temper Axle, a company that has earned the trust of truck, bus, and specialty fleets around the world. Temper Axle is in turn backed by its parent company, Temper Corporation, a leader in specializing bearing adjustment solutions for over 40 years. The company designs and manufactures products for a wide range of applications and industries.
Cynthia DeKuiper, President of Temper Axle said, “The past two years have been an outstanding partnership. We’re excited to sponsor our third season of the Super Semi Truck Division and working with the NTPA team!”
The NTPA’s GN SEMI division is set to appear 11 times at six Super and Grand National regular-season events in 2025. The top five in points will compete for an Enderle Pull-Off championship on Saturday, September 13 in Urbana, Ohio.
“Doctor Preload’s tagline is ‘Simple. Proven. Stable’,” said Gregg Randall, the NTPA’s Executive Director. “That applies to their support of our motorsport as well. They’re a perfect fit for our Semi class, they’ve become a presence on our circuit, and now they’ve entered their third year with us.”
“For our many fans and competitors who have rigs to maintain, we hope they’ll give the Doctor Preload system a chance to improve the lifespan of their tires and wheels.”
For more information about Doctor Preload, visit DoctorPreload.com.