International Trade Fair for Construction Machinery,
Building Material Machines, Mining Machines and Construction Vehicles.

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LIANJUN MACHINERY

SNIEC W4.589

Headquarters: 

Target Groups: 

TRACK ROLLER / IDLER / SPROCKET / CARRIER ROLLER / BUCKET BUSHING / BUCKET PIN / TRACK BUSH / TRACK PIN / TOOTH PIN

Product Category: Excavators

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Product Introduction

Our undercarriage parts and structural wear components – track rollers, carrier rollers, idlers, drive sprockets, bucket pins, bushings, track pins, and retaining pins – are forged from high-strength 40Cr/40mn2/40Mn/35# alloy steel. Induction hardening and tempering deliver a uniform hardness of HRC 52–56 with deep case depth, ensuring exceptional wear resistance and impact strength. CNC precision machining guarantees tight tolerances for smooth mating and reduced friction. Multiple surface finishes – electrophoresis, phosphating, or hard chrome – provide robust corrosion protection in muddy and sandy conditions. Advanced floating or dual‑cone seals effectively block contaminants and prevent lubricant leakage. All products are dimensionally interchangeable with OEM parts for Komatsu, Hitachi, Caterpillar, Kobelco, Doosan, Sany, and other mainstream brands. Our patented quick‑release bucket pin design simplifies disassembly, cutting maintenance time significantly. These features offer w

Product Brochure

International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles

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