This 81N6-13010 R210 lower track roller is a durable chassis load-bearing spare part customized for R210 series excavator track system maintenance and replacement. Unlike common low-carbon steel track rollers with poor comprehensive performance, this bottom roller uses premium 35MnB alloy steel as full raw material. This professional mechanical steel balances excellent wear resistance, impact toughness and compression resistance, perfectly matching medium and heavy load working conditions of R210 chassis.

It delivers stable long-term supporting performance for daily earthwork, road construction and muddy uneven sites, reducing frequent part replacement downtime for construction equipment.

Most budget aftermarket track rollers adopt ordinary carbon steel with unstable material composition. Such rollers suffer fast surface abrasion, brittle cracking and shaft damage easily under cyclic track vibration and moderate heavy load.

Our 81N6-13010 track roller sticks to pure 35MnB alloy steel for whole body production. Every batch of raw steel undergoes strict chemical composition inspection before production. We match targeted tempering and quenching process based on alloy material characteristics, avoiding material performance attenuation, and solving the core defect of short service life for ordinary carbon steel chassis rollers.

• Genuine 35MnB Alloy Steel Material: Higher tensile strength and fatigue resistance than ordinary carbon steel, adapting to long-term cyclic track load of R210 medium excavator.
• Balanced Wear & Toughness Performance: Hard roller surface resists track friction; tough roller body buffers ground impact, no easy cracking under sudden pressure.
• Stable Long-term Operation: Excellent material durability reduces abnormal wear and roller stuck failure, cutting overall equipment maintenance cost.
• Exact Plug-and-play Replacement: Fully compliant with 81N6-13010 standard chassis size, no field drilling or adjustment required for fast replacement.

This 35MnB alloy steel track roller is perfectly applied to R210 series excavator chassis load-bearing replacement and routine undercarriage overhaul. All finished rollers are treated with anti-rust oil, sealed with waterproof protective film and packed with reinforced wooden cases for long-distance ocean transportation.

We provide material inspection certificates, sample testing and bulk OEM wholesale services, supplying cost-effective and durable chassis load-bearing parts for global engineering machinery dealers and repair workshops.