Track tensioning wheel. Width of the inner guiding flange 40mm complete with shaft.
Idler wheels ITR for mini excavators and compact loaders are manufactured using the latest automated design and production processes.
ITR Tensioning Wheel for YANMAR VIO40
They are made from selected high-quality steel alloys and are properly heat-treated to ensure exceptional field performance in extreme working conditions. Idler wheels ITR are assembled using state-of-the-art seals and bearing designs, produced according to the most stringent industry specifications. Assembly takes place on assembly lines with an automated oil filling process. Idler wheels can be selected in various configurations:
- Tensioning wheel shell
- Tensioning wheel with bushing and shaft
- Tensioning wheel with brackets
- Tensioning wheel with fork
- Tensioning wheel with tensioner
Quality of ITR Tensioning Wheels
The range of tensioning wheels includes equipment from mini excavators to mining machines from KUBOTA® K008 (machine operating weight 0.9 tons) to KOMATSU® D475 A5 (machine operating weight 101 tons). The engineering and R&D departments located in Italy, South Korea, and China collaborate to combine know-how, technology, and development capabilities. The engineering departments in each production facility possess specific knowledge about locally produced components, while the headquarters of Italian Engineering coordinates all activities.
Functionality of ITR Tensioning Wheels
The function of the tensioning wheel is to support the track chain and guide it so that it is properly wound. Additionally, the tensioning wheel and tensioner work together to maintain a specified degree of track tension. The most important controllable factor in undercarriage wear is the correct tension of the chain. The correct sag for all conventional tracks is about 50mm (+-5mm). For example, the track on an 80-horsepower machine with a sag of 12mm will have a tension value of 2540 kg when measured at the track tensioner. The same machine with a suggested sag of 50mm will have a tension value of 362 kg. An excessively tight track increases pressure, resulting in greater wear on the track bushings when in contact with the drive sprocket teeth and in the chain-tensioning wheel-roller contact. Tread hardness equal to or greater than that of the chain links, running rollers, and supporting rollers ensures impact resistance and balanced durability. Material type: SCMn3A, hardening 50-55 HRC. Lifetime lubrication to minimize maintenance.
