buy EX200-3 High Strength HITACHI Excavator Track Conveyor Carrier Rollers

Double floating seals (high-chromium alloy, HRC 65–70) to prevent oil leakage and block contaminants (dust, mud, water).

FKM O-rings resistant to high temperatures (-20°C to 200°C) and chemical exposure, ensuring long-term sealing integrity.

Maintenance-free design with pre-filled high-performance lithium complex grease (NLGI 2), sealed for lifetime use to reduce servicing needs.

Smooth tread finish (Ra ≤ 0.8 μm) minimizes friction with track links, extending both roller and chain service life.

Symmetrical flanges to guide the track chain and prevent lateral misalignment during operation.