Excavator Track Shoes in Doosan DH55 Earth Moving Machinery

Product Definition & Function

• Component: Track Shoe (Single Unit) / Track Link Assembly (Shoe + Bolts/Nuts)
• Function: Primary ground-engaging component of the undercarriage system, distributing machine weight, transmitting drive force, and providing traction/stability.
• Critical Metric: Ground pressure (kPa/psi) determined by shoe width.

Technical Specifications

 1,Dimensional Data

Compatibility & Identification

2,.Machine Specificity

• OEM Model: Doosan Infracore DH55-7 (5.5-ton compact excavator)

• Undercarriage Dependency:

  • Specifications are valid only for matching Undercarriage Group Numbers (e.g., UC1234-A). Variations exist across production batches.

3,OEM Part Numbers

4. Material & Manufacturing

• Base Material: DIN 1.7102 (90MnCrV8) Mn-B alloy steel

• Heat Treatment: Through-hardening (Surface: HRC 52–56 / Core: HRC 38–42)

• Surface Finish: Shot peening (SAE J443 standard, intensity 0.35–0.40 mmA)

5. Structural Design

• Connection: 2-bolt system (M16×2.0, ISO 898-1 Grade 10.9)

• Grouser Profile: Single-center grouser with reinforcement ribs (thickness: 22 mm)

• Mud-Clearing Features: Lateral sludge ejection grooves

• Pin/Boss Interface: Laser-hardened (Depth: 1.2–1.8 mm, hardness ≥ HRC 58)

Installation & Maintenance

6. Torque Specifications

• Bolt Preload: 340–360 N·m (251–266 lb-ft)

  • *Procedure: Tighten in two stages (50% + 100%) using calibrated torque wrench.*

• Re-torque Check: Every 50 operating hours

7. Wear Limits

Validation Protocol

8. Mandatory Matching Steps

1. Locate Undercarriage Group Number:

   • Position: Metal plate on right-hand track frame (Format: UCXXXX-XX).

2. Physical Verification:

   • Measure pitch (101.6 mm), bolt hole spacing (78±0.5 mm), and thickness (24 mm) on an existing shoe.

3. OEM Verification:

   • Submit Machine Serial Number (S/N) + Undercarriage Group Number to Doosan dealer for parts confirmation.

⚠️ Critical: Never install without cross-referencing physical samples or OEM verification. Mismatched shoes accelerate undercarriage wear by 300–500%.

Ordering Guidance

• OEM Source: Doosan dealer with S/N + UC Group Number.

• Aftermarket Alternatives: Berco, ITM, or Solas (Provide UC Group Number for compatibility check).

For exact engineering drawings or batch-specific data, share your Undercarriage Group Number. We will supply machine-matched documentation.