D3B Dozer Chain Track Link Excavator Track Link

Basic Information

Place of Origin:	Quanzhou Fujian
Brand Name:	CCJT

Minimum Order Quantity:	100
Delivery Time:	30
Payment Terms:	L/C, T/T
Supply Ability:	10000+pc+7

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Detail Information

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
Highlight:	D3B Dozer Excavator Track Link , Excavator Track Link , 6S8685 Track Link

Product Description

Dozer Chain Track Link Excavator Track Link

1. 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

2. Core Specifications

2.1 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)

2.2 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.

3. Configuration Options

3.1 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

3.2 Link Quantity

Standard for D3B: 39–41 links per side (varies by configuration).

4. 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.

5. OEM & Aftermarket References

Caterpillar Part Numbers:

8J-7111 (Complete link assembly)
3J-7357 (Pin & bushing kit)

6. Key Selection Notes

Verify Machine Year: Early D3B models (pre-1980s) may use non-standard pitch (e.g., 5.5").
Match to Application: Opt for wide swamp pads in wet conditions to reduce lateral stress on links.
Genuine Part Identification: Look for "CAT" logo and laser-etched part numbers on link sides.

Tag:

D3B Dozer Chain Track Link Excavator Track Link

D3B Dozer Excavator Track Link

Excavator Track Link

6S8685 Track Link

1. Product Overview

2. Core Specifications

2.1 Dimensional Data

2.2 Material & Manufacturing

3. Configuration Options

3.1 Track Shoe Types

3.2 Link Quantity

4. Performance Features

5. OEM & Aftermarket References

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