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High-Quality OEM Undercarriage Track Roller for Komatsu PC300-1 and PC300-3 Excavators. Heavy-duty forged steel, superior wear resistance, deep quenching, and precise fitment. Direct wholesale manufacturer.

Product Details

Technical Specifications

Application

Komatsu PC300-1, PC300-3 (Also compatible with PC300-2)

Part Name

Track Roller / Bottom Roller

Material

50Mn Steel

Process

Forging + Heat Treatment + CNC Machining

Surface Hardness

HRC 52-58

Seal Type

Double Lip Floating Seal (NBR/FKM)

Lubrication

High-Temperature Resistant Grease

Warranty

12 Months or 2000 Working Hours

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