Upper support roller without mounting brackets (cap), without guiding edges. Outer width between the inner flanges or inner flange width of the roller: 120mm.
Support rollers for ITR mini excavators are specially designed for the toughest applications and environments.
A full range of sizes and types are 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 precision machining ensure uniformity and consistency in production. Precise assembly, lifetime lubrication, and quality control during and after production ensure product performance and reliability.
The range of ITR travel and support rollers covers from mini excavators to mining machines, from KOMATSU® PC05 (machine operating weight of 1.4 tons) to HITACHI® EX25OO (machine operating weight of 248 tons).
ITR undercarriage components are developed, designed, and manufactured by USCO's engineering and R&D departments, using the latest CAD systems and in collaboration with partner universities. The ITR undercarriage product line is entirely self-managed. From raw material procurement, through component design, mechanical processing, heat treatment, through the entire assembly process to final inspection. Numerous quality controls are carried out, starting with the purchase of raw materials. The controls are based on knowledge and experience in metallurgy and materials engineering processes.
Functions of the upper support rollers: They support the track between the sprocket and the tensioner. The durability of the roller tread is matched to the durability of the track chain links. Support rollers have induction-hardened shells to increase 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 provide maximum strength. Lubricated for life for minimal 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 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 applications for excavators and bulldozers along with a full range of undercarriage components for asphalt, drilling, and logging machines. Production flexibility and design experience also place the ITR undercarriage line in a good position to deliver "custom" products for special applications. Tractors, crawler dozers, mini excavators, compact track loaders, forest machines, hydraulic excavators, logging machines, cranes, pipe layers, combine harvesters, asphalt pavers, mobile crushers...
