Hyundai Robex Excavator Track Chain Track Link Assembly, OEM Genuine Par R55-7 for Hyundai R55-7/R55-9, R60-7/R60-9, R80-7, R130LC-3/R130LC-7, R140LC-7/R140LC-9, R160LC-7, R210LC-7/R210LC-9, R220LC-9, R235LCR, R250LC-7, R290LC-9, R305LC-7, R330LC-9, R360LC-7, R450LC-7, R480LC-9, HX220, HX260 excavator

1. Product Overview
Hyundai Track Chain (Track Link Assembly) is the core load-bearing and walking component of excavator undercarriage system, matched with sprocket, idler, track roller and carrier roller to ensure stable driving of construction machinery on mud, rock, mountain and mining sites.
Our track chains are manufactured strictly in accordance with Hyundai original OEM drawings and dimensional standards, fully interchangeable with genuine Hyundai spare parts without secondary drilling or modification. Adopts sealed lubricated oil chain design, effectively reduce pin and bushing wear, prevent mud, sand and sewage erosion, greatly extend service life, widely used in earthmoving, road construction, quarry, mine, municipal engineering and other harsh working scenarios.
2. Core Advantages
✅ High-Strength Alloy Forging Material: Adopt 35MnB / 40Cr integral die forging, high tensile strength, anti-breakage and anti-deformation under heavy load
✅ Deep High-Frequency Quenching Treatment: Surface hardness HRC 52–58, quenching depth 8–12mm, wear-resistant service life 35% longer than ordinary cast track chain
✅ Precision Pin & Bushing Matching: CNC fine machining, small fit clearance, effectively avoid chain elongation, derailment and track deviation
✅ Dual Floating Seal Lubricated Structure: Import fluorine rubber oil seal, excellent dustproof, leakproof and corrosion resistance, long maintenance-free cycle
✅ Two Versions Available: Standard civil engineering type / heavy mining reinforced thickened type to meet different working condition demands
✅ Full Hyundai Model Coverage: Complete OEM part numbers from mini excavator to large mining excavator, sufficient spot inventory for fast delivery