Track tensioning wheel. Width of the inner guide flange 56mm 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 CATERPILLAR 299 C
They are made from selected high-quality steel alloys and 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, manufactured in accordance with the strictest industry specifications. Assembly takes place on assembly lines with an automatic 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 covers 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 located 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 to ensure it is properly wound. Additionally, the tensioning wheel and the 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 deflection for all conventional tracks is approximately 50mm (+-5mm). For example, a track in an 80-horsepower machine with a 12mm deflection will have a tension value of 2540 kg when measured in the track tensioner. The same machine with a suggested deflection of 50mm will have a tension value of 362 kg. An excessively tensioned track increases pressure, causing greater wear on the track bushings when in contact with the drive wheel teeth and in the track-tensioning wheel-roller contact. Tread hardness equal to or greater than chain links, track rollers, and support rollers ensures impact resistance and balanced durability. Material type: SCMn3A, hardening 50-55 HRC. Lifetime lubrication to minimize maintenance.
