Upper support roller with mounting brackets (caps), without guide edges Outer width between inner flanges or inner flange width of the roller: 470mm
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 precise machining guarantee uniformity and consistency in 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 covers from mini excavators to mining machines.
from KOMATSU® PC05 (machine operating weight 1.4 tons) to HITACHI® EX2500 (machine operating weight 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 fully self-managed. Starting from raw material procurement, through component design, mechanical processing, heat treatment, the entire assembly process, and 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 idler. 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 – 58 HRC. Shafts and bearings are designed to reduce friction and wear and provide maximum strength. Lubricated for life to ensure minimal maintenance.
Bronze 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 rings. The rubber rings provide adequate 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, covering standard applications for excavators and bulldozers along with a full range of undercarriage components for asphalt, drilling, and logging machines. The flexibility in production and design experience also position the ITR undercarriage line well to supply "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, asphalt pavers, mobile crushers..
