Upper support roller without mounting brackets (cap), without guiding edges External width between the internal flanges or internal flange width of the roller: 95mm
Support rollers for ITR mini excavators are specially designed for the toughest applications and environments.
A full range of sizes and types is available for all popular brands and models. ITR rollers are forged products, made from selected materials such as boron steel, high-strength castings, and top-quality components.
Deep heat treatment and precise machining ensure uniformity and consistency of production. Accurate assembly, lifetime lubrication, and quality control during and after production ensure product performance and reliability.
The range of ITR travel and support rollers covers everything from mini excavators to mining machines, from KOMATSU® PC05 (machine operating weight 1.4 tons) to HITACHI® EX25OO (machine operating weight 248 tons)
ITR undercarriage components are developed, designed, and built by USCO engineering and R&D departments, utilizing the latest CAD systems and in collaboration with partner universities. The ITR undercarriage product line is entirely self-managed. Starting from the purchase of raw materials, through element design, mechanical processing of components, heat treatment, through the entire assembly process to final inspection. Numerous quality controls are conducted starting from raw material purchase. The controls are based on knowledge and experience in metallurgical processes and material engineering.
Functions of upper support rollers: They support the track, between the sprocket and the tension wheel. The durability of the roller tread is matched to the durability of the track chain links. Support rollers have shells that are induction hardened to increase surface hardness, wear resistance, and fatigue strength while maintaining the core properties. Values range from 50 to 58 HRC. Shafts and bearings are designed to reduce friction and wear and ensure maximum strength. Lubricated for life to minimize maintenance.
Bronze-lined plain bearing. The design provides a large surface area for better load distribution. The soft bronze coating in the bearing protects against any fine contaminants that could damage the shaft and seals. Duo-Cone seal consists of two metal sealing rings and two rubber ones. The rubber rings provide the correct pressure on both sides of the metal sealing rings. Resistant to permanent deformation and temperature changes from -40°C to 110°C. Duo-Cone seals are designed to withstand several tread lifetimes, depending on individual conditions.
The ITR undercarriage product line offers the most comprehensive range available on the market, covering standard applications for excavators and bulldozers along with a full range of undercarriage components for asphalt, drilling, and logging machines. The flexibility of production and experience in design also position the ITR undercarriage line well to supply "custom" products for special applications. Tractors, crawler bulldozers, mini excavators, compact track loaders, forestry machines, hydraulic excavators, logging machines, cranes, pipe layers, combine harvesters, pavers, mobile crushers..
