The Sumitomo SH280 Excavator Undercarriage Track Roller (also known as bottom roller or lower roller) is a heavy-duty support component engineered specifically for Sumitomo SH280 series excavators. As a critical undercarriage part, the track roller bears the full machine weight, distributes load evenly across the track chain, and ensures smooth, stable travel over rough terrain.

Manufactured from high-quality 40MnB alloy steel through precision forging and casting processes, this track roller delivers exceptional structural integrity and impact resistance. The roller surface undergoes induction hardening and quenching treatment, achieving a surface hardness of HRC 52-60 with a hardening depth exceeding 7mm, providing outstanding wear resistance and extended service life in the most demanding applications.

Equipped with advanced double conical sealing technology, the roller effectively isolates mud, water, and dust contaminants from the bearing system. This lifelong lubrication design significantly prolongs service life and ensures reliable performance even in harsh working conditions such as mining, quarrying, construction, and forestry.

Available in both single-flange and double-flange configurations, the SH280 track roller meets the specific requirements of different machinery applications. With scientific design and low rolling resistance, it contributes to efficient machine operation and reduced fuel consumption