Track tensioner wheel. Inner flange width of 25mm complete with shaft.
Idler wheels ITR for mini excavators and compact loaders are manufactured using the latest automated design and production processes.
ITR Tensioner Wheel for IHI 18 NXT
They are made from selected high-quality steel alloys and appropriately 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. The assembly takes place on assembly lines with an automatic oil filling process.Idler wheels can be chosen in various configurations:
- Tensioner wheel shell
- Tensioner wheel with bushing and shaft
- Tensioner wheel with brackets
- Tensioner wheel with fork
- Tensioner wheel with tensioner
Quality of ITR Tensioner Wheels
The range of tensioner 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). Engineering and R&D departments are located in Italy, South Korea, and China and collaborate to combine know-how, technology, and development capabilities. Engineering departments in each manufacturing plant possess specific knowledge of locally produced components, while the headquarters Italian Engineering coordinates all activities.
Functionality of ITR Tensioner Wheels
The function of the tensioner wheel is to support the track chain and guide it so that it winds properly. Additionally, the tensioner wheel and tensioner work together to maintain a specified degree of track tension. The most important controllable factor in undercarriage wear is correct chain tension. The correct sag for all conventional tracks is approximately 50mm (+-5mm). For example, a track on an 80-horsepower machine with a 12mm sag will have a tension value of 2540 kg when measured at the track tensioner. The same machine with a suggested 50 mm sag will have a tension value of 362 kg. Over-tensioned track increases pressure, which causes greater wear on the track bushings when in contact with the drive sprocket teeth and in the chain-tensioner wheel-roller contact. Tread hardness equal to or greater than the chain links, travel rollers, and support rollers ensures impact resistance and balanced durability. Material type: SCMn3A, hardening 50-55 HRC. Lubrication for the entire operational period to minimize maintenance.
