Upper support roller without mounting brackets (cap), with external guiding edges External width between internal flanges or internal flange width of the roller: 90mm
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 track and support rollers includes everything from mini-excavators to mining machines, from KOMATSU® PC05 (machine working weight of 1.4 tons) to HITACHI® EX25OO (machine working weight of 248 tons)
ITR undercarriage components are developed, designed, and engineered by the USCO engineering and R&D departments using the latest CAD systems and in collaboration with partner universities. The ITR undercarriage product line is fully managed in-house. Starting from raw material procurement, through component design, mechanical processing, heat treatment, the entire assembly process, to final quality control. Numerous quality controls are conducted starting from raw material purchase. The controls are based on knowledge and experience in metallurgical processes and materials engineering.
Functions of upper support rollers: They support the track between the sprocket and tensioning wheel. The durability of the roller tread is matched to the durability of the track chain links. Support rollers have induction-hardened shells for increased surface hardness, wear resistance, and fatigue strength while maintaining 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 lifetime to minimize maintenance.
Bronzed plain bearing. The design provides a large surface area for better load distribution. The soft bronze coating in the bearing protects against any small contaminants that could damage the shaft and seals. The Duo-Cone seal consists of two metal sealing rings and two rubber ones. The rubber rings provide the appropriate 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 complete range available on the market, which includes standard excavator and bulldozer applications along with a full range of undercarriage components for asphalt, drilling, and timber harvesting machines. Production flexibility and design experience also place the ITR undercarriage line in a good position to deliver "custom-made" 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...
