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Spannrad mit Führungen CATERPILLAR 301 8
Idler wheels for the track. Internal guide flange width 25mm complete with shaft.
Idler wheels ITR for mini excavators and compact loaders ensure optimal track tension through the use of the latest design and manufacturing technologies.
ITR Tension Wheel for CATERPILLAR 301 8
Our Idler wheels are made from selected high-quality steel alloys and properly heat-treated to ensure exceptional field performance in extreme working conditions. They are assembled using state-of-the-art seals and bearing designs, meeting the industry's most stringent specifications. Our Idler wheels are assembled on production lines with an automatic oil filling process, ensuring their reliability and durability.
They are available in various configurations, including:
- Tension wheel shell
- Tension wheel with bushing and shaft
- Tension wheel with brackets
- Tension wheel with fork
- Tension wheel with tensioner
Our Idler wheels are designed to meet all work demands in tough conditions, providing reliability and long lifespan.
Quality of ITR Tension Wheels
Our range includes a wide selection of tension wheels, from mini excavators to mining machines, ensuring high quality and performance. Starting from KUBOTA® K008 (with an operating weight of 0.9 tons) up to KOMATSU® D475 A5 (with an operating weight of 101 tons), we offer comprehensive solutions. Our engineering and R&D departments in Italy, South Korea, and China collaborate to combine know-how, technology, and development capabilities. Local engineering departments in each production facility possess specialized knowledge of the components produced, and the Italian Engineering headquarters coordinates all activities.
Functionality of ITR Tension Wheels
The function of the tension wheel is to properly tension and guide the track chain, ensuring its correct winding. The tension wheel and tensioner work together to maintain a specified degree of track tension. Proper chain tension is a key factor affecting the longevity of the undercarriage. The optimal sag for conventional tracks is about 50mm (+-5mm). For example, a track on an 80-horsepower machine with 12mm sag will have a tension of 2540 kg when measured in the track tensioner. Meanwhile, the same machine, with a suggested sag of 50mm, will have a tension of 362 kg. An overly tight track increases pressure, leading to greater wear on the track bushing and sprocket teeth, as well as contact between the chain and the tension wheel and rollers. Appropriate tread hardness, equal to or greater than that of the chain links and running and support rollers, ensures impact resistance and balanced durability. Material: SCMn3A, hardening 50-55 HRC. Constant lubrication ensures minimal maintenance throughout the service life.
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