GKN Wheels develops solution for Michelin’s X Tweel SSL tire

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The Michelin X Tweel SSL 2 airless tire for skid steers features a completely new wheel, developed and manufactured by GKN Wheels. The Tweel is a single, fully integrated unit that replaces the traditional tire/wheel/valve assembly.

Developed over a four-year period, a team of engineers from GKN Wheels’ Center of Excellence in North America worked in close partnership with Michelin to create this innovative solution.

With a brief to deliver a robust, high-performance and long-life wheel, the project team’s solution was to design a wheel that would provide a mechanical bond with the tire – replacing the chemical bond system that had previously been used. Featuring spider disc tines and an eight-hole, high-grade steel hub, the Tweel is stiffer than a traditional wheel, enabling it to cope with different stresses imposed on a completely integrated unit. Given the unique nature of the product, the team also had to develop specific laboratory and field test regimes to fully validate and prove the design concept.

GKN Wheels’ chief engineer for the Americas, Aaron Dahl, said, “It’s really exciting to see this innovative new product now in operation, with huge credit going to the joint project team that turned a vision into reality. Bringing together our expertise in wheels with Michelin’s expertise in tires has proved to be a winning combination.

“Quite rightly, given the unique nature of the product, the development program was rigorous and exhaustive. The result though is a Tweel that not only looks great, but also delivers significant benefits for skid steer loaders, which usually operate in demanding and challenging environments. The use of Tweel completely eliminates the risk of punctures, reduces downtime, improves efficiency and ultimately reduces cost of ownership for contractors and rental fleet operators.”

Added John Duty, product development engineer, Michelin Tweel Technologies, “The Michelin Tweel has been a disruptive technology not only to the tire industry, but also the wheel industry. Developing a robust, yet competitive wheel part for the SSL Tweel 2 has been a challenge, however thanks to GKN Wheels’ knowledge and capability in this segment, we were able to address significant customer pain points while improving manufacturability, creating a stronger value proposition for the end user.”

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Rachel's career in journalism began around five years ago when she started working for UKi Media & Events, having recently graduated from Coventry University where she studied the subject. Her favourite aspect of the job is interviewing industry experts, including researchers, scientists, engineers and technicians, and learning more about the ground-breaking technologies and innovations that are shaping the future of the automotive and tire industries.

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