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Spannrad mit Führungen BOBCAT 442
Idler wheels for the track. Inner guide flange width 54mm complete with shaft.
Idler wheels ITR for mini excavators and compact loaders ensure optimal track tension thanks to the use of the latest design and manufacturing technologies.
ITR Idler Wheel for BOBCAT 442
Our Idler wheels are made from selected high-quality steel alloys and appropriately heat-treated to ensure exceptional field performance in extreme working conditions. We assemble them using state-of-the-art seals and bearing designs, meeting the most stringent industry specifications. Our Idler wheels are assembled on production lines with an automatic oil filling process, ensuring reliability and durability.
They are available in various configurations, including:
- Idler wheel shell
- Idler wheel with bushing and shaft
- Idler wheel with brackets
- Idler wheel with fork
- Idler wheel with tensioner
Our Idler wheels are designed to meet all work demands in harsh conditions, providing reliability and long life.
Quality of ITR Idler Wheels
Our range includes a wide selection of idler wheels, from mini excavators to mining equipment, 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 at each production facility have specialized knowledge of the produced components, and the Italian Engineering headquarters coordinates all activities.
Functionality of ITR Idler Wheels
The function of the idler wheel is to properly tension and guide the track chain, ensuring its correct winding. The idler wheel and tensioner work together to maintain a specified tension level of the track. Effective chain tension is a key factor affecting the undercarriage's durability. The optimal deflection for conventional tracks is about 50mm (+-5mm). For example, a track on an 80-horsepower machine with a deflection of 12mm will have a tension of 2540 kg when measured at the track tensioner. Meanwhile, the same machine, with a suggested deflection of 50mm, will have a tension value of 362 kg. An overly tensioned track increases pressure, resulting in greater wear of the track’s bushings and sprocket teeth, as well as contact between the chain and the idler wheel and rollers. Appropriate tread hardness, equal to or greater than the chain links and the drive and carrier rollers, ensures impact resistance and balanced durability. Material: SCMn3A, hardening 50-55 HRC. Constant lubrication ensures minimal maintenance throughout its service life.
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