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D3B Dozer Track Chain Assy Undercarriage Track Chain Smooth Finished

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D3B Dozer Track Chain Assy Undercarriage Track Chain Smooth Finished

Brand Name : CCJT

Certification : ISO\CE

Place of Origin : Fu Jian China

MOQ : 5PCS

Payment Terms : T/T,L/C

Supply Ability : 12000 sets/month

Delivery Time : 5-8 work days

Packaging Details : Standard Export Strong Paper Box, Wooden Pallet

Model Number : D3B

Other Brands : Excavator Track Link

Package : Export wooden pallet

Material : High-strength Steel

Surface Treatment : Heat Treatment

Color : Black

Warranty : 1 year

Finish : Smooth

Colour : Yellow

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D3B Dozer Chain Track Link Excavator Track Link
Product Attributes
Attribute Value
Name Factory Direct D3B Dozer Chain Cr3657 6S8685 Track Link Excavator Track Link
Other Brands Excavator Track Link
Package Export wooden pallet
Material High-strength Steel
Surface Treatment Heat Treatment
Color Black
Warranty 1 year
Finish Smooth
Colour Yellow
Product Overview
  • Compatible Model: Caterpillar D3B compact crawler bulldozer (or modified excavator versions of similar tonnage)
  • Track Type: Sealed & Lubricated (SALT) track chain, designed for medium-to-low load applications
  • Design Standard: Complies with Caterpillar TL (Track Link) series specification
D3B Dozer Track Chain Assy Undercarriage Track Chain Smooth Finished
Core Specifications
Dimensional Data
Parameter Value (mm/inches)
Pitch 152.4 mm (6")
Shoe Width 300 mm (12")
Link Thickness 45±2 mm
Bushing/Pin Diameter 38.1 mm (1.5")
Assembly Weight (per side) ~250 kg (varies by shoe type)
Material & Manufacturing
  • Track Links: Forged high-manganese steel (Mn18Cr2), quenched, hardness ≥HRC55
  • Pins & Bushings: Alloy steel (42CrMo), medium-frequency induction hardened, hardness HRC58-62
  • Sealing System: Nitrile rubber (NBR) seals + lithium-based grease for dust/water resistance
Configuration Options
Track Shoe Types
Type Application Features
Single-Grouser Hard terrain, rocky conditions High traction & wear resistance
Flat Shoes Turf/asphalt protection Minimizes ground disturbance
Wide Swamp Pads Mud/wet soils Extra width (400mm) to reduce sinking
Link Quantity
  • Standard for D3B: 39-41 links per side (varies by configuration)
Performance Features
  • Durability: Service life up to 4,000-6,000 hours (under normal conditions)
  • Maintenance Intervals: Grease replenishment every 500 hours, seal replacement at 2,000 hours
  • Compatibility: Interchangeable with similar models (e.g., D3C/D4B) after verifying pin dimensions
OEM & Aftermarket References

Caterpillar Part Numbers:

  • 8J-7111 (Complete link assembly)
  • 3J-7357 (Pin & bushing kit)
Key Selection Notes
  1. Verify Machine Year: Early D3B models (pre-1980s) may use non-standard pitch (e.g., 5.5")
  2. Match to Application: Opt for wide swamp pads in wet conditions to reduce lateral stress on links
  3. Genuine Part Identification: Look for "CAT" logo and laser-etched part numbers on link sides
D3B Dozer Track Chain Assy Undercarriage Track Chain Smooth Finished

Product Tags:

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