VOLVO 14520610 108102210 R9346000M01 / EC460 EC480 Track Chain Sprocket Wheel Assembly / Heavy duty EXC Undercarriage part source factory and manufacturer / CQC TRACK

Track Chain Sprocket Wheel Assembly | OEM-Quality Source Factory

By JACK
Senior Undercarriage Specialist, CQC TRACK

1. Product Overview

The VOLVO 14520610 / 108102210 / R9346000M01 Track Chain Sprocket Wheel Assembly represents a critical power transmission component for the VOLVO EC460 and EC480 series heavy-duty crawler excavators. As the final interface between the hydraulic travel motor and the track chain, this sprocket assembly converts hydraulic torque into tractive force—making it one of the most heavily loaded components in the entire undercarriage system .

CQC TRACK manufactures this assembly as a direct OEM-quality replacement, engineered to meet or exceed original equipment specifications. With vertical integration from raw material sourcing to finished assembly, we serve as both a source factory and a manufacturing partner for distributors, fleet operators, and equipment dealers across global markets .

OEM Cross-Reference

2. Technical Specifications: Engineered for Extreme Duty Cycles

The sprocket assembly serves as the drive interface that engages with the track chain bushings. Its tooth profile and material integrity directly determine track system longevity, operational efficiency, and machine uptime .

2.1 Material Composition & Heat Treatment

The selection of 42CrMo4 chromium-molybdenum alloy steel provides exceptional toughness, fatigue resistance, and the ability to withstand high-cycle contact stress common in mining and heavy construction applications . The induction hardening process is precisely controlled to achieve optimal hardness distribution—hard enough to resist abrasive wear, yet ductile enough to absorb shock loads without catastrophic failure.

2.2 Tooth Profile & Dimensional Accuracy

• CNC-Machined Tooth Geometry: Each sprocket tooth is machined to OEM specifications with strict control of pitch diameter, tooth thickness, and root radius. The profile is optimized for smooth engagement with the track chain bushings, minimizing wear on both sprocket and chain.
• Mounting Interface Tolerance: The bolt pattern, pilot diameter, and mounting flange thickness are CNC-machined to ±0.05 mm precision, ensuring perfect alignment with the final drive motor housing without shimming or modifications .
• Flange Integrity: Precision-machined flanges prevent lateral track derailment during side-slope operations or aggressive turning maneuvers.

2.3 Assembly Components

Each complete sprocket assembly includes:

• Sprocket Ring: Induction-hardened with precision tooth profile
• Mounting Bolts: High-strength grade 12.9 bolts with corrosion-resistant coating
• O-Rings / Gaskets: For sealing between sprocket and final drive housing
• Anti-Corrosion Treatment: Zinc-plated or black oxide finish with anti-rust oil coating

3. Manufacturing Capabilities: Why Source from CQC TRACK

As a manufacturer, not merely a distributor, CQC TRACK controls every stage of production—from material certification to final assembly. This vertical integration ensures consistent quality, full traceability, and supply chain reliability .

3.1 Quality Assurance Protocol

3.2 Advanced Manufacturing Processes

Closed-Die Forging: The sprocket blank is forged using closed-die technology, which produces a dense, uniform grain structure that follows the component contour. This process eliminates internal voids and porosity common in cast components, delivering superior impact resistance .

Precision Induction Hardening: Computer-controlled induction heating followed by rapid quenching creates a hardened case that is metallurgically bonded to a tough core. This dual-phase structure provides both wear resistance and shock absorption—essential for mining environments.

Coordinate Measuring Machine (CMM) Verification: Every critical dimension is verified using CMM technology, ensuring that each sprocket matches the original VOLVO specifications for bolt patterns, pilot diameters, and tooth geometry .

4. Regional Market Coverage & Logistics Support

CQC TRACK maintains a global supply chain with strategic stock locations and regional expertise to serve diverse operating conditions across target markets.

4.1 Australia & Oceania

Australia represents one of the most demanding undercarriage environments globally. The combination of abrasive iron ore in Western Australia, hard rock in Queensland, and remote site logistics requires components that deliver exceptional wear life. CQC TRACK has partnered with local distributors to ensure that VOLVO EC460/EC480 sprocket assemblies are available when and where they are needed .

4.2 Japan & Northeast Asia

Japanese and Korean markets demand the highest standards of precision and reliability. Our sprocket assemblies are manufactured under ISO 9001:2015 certified processes, with full documentation including material certifications and dimensional inspection reports available for each shipment .

4.3 South America

South America’s mining sector—particularly copper operations in Chile and Peru—requires undercarriage components capable of withstanding extreme abrasion and high-impact loads. Our sprockets are engineered with enhanced case depth (≥6 mm) to deliver extended service life in these conditions . The high humidity and salt air of coastal transport routes are addressed through VCI packaging that prevents corrosion during ocean freight and warehouse storage.

4.4 Russia & Central Asia

For operations in Siberia and the Russian Far East, where ambient temperatures can drop below -40°C, standard steel grades may become brittle. CQC TRACK offers an Arctic-grade variant featuring specially formulated low-temperature steel (LT-Steel) with enhanced impact toughness at sub-zero temperatures. Mounting bolts receive a specialized anti-seize coating to prevent galling during cold-weather installation .

4.5 Europe

European customers benefit from local warehousing that enables rapid delivery across the continent. All products carry CE marking and comply with relevant EU regulations. The European market’s emphasis on environmental compliance and safety standards aligns with CQC TRACK’s quality management systems .

4.6 West Asia, Central Asia & Africa

Desert operations present unique challenges: extreme ambient temperatures, abrasive sand ingress, and high thermal cycling. CQC TRACK sprocket assemblies for West Asian and North African markets feature enhanced sealing systems and optional high-temperature anti-seize compounds. The Dubai stocking location ensures rapid delivery to Gulf Cooperation Council (GCC) countries .

5. Undercarriage System Context: The Complete Solution

While this article focuses on the sprocket wheel assembly, CQC TRACK manufactures the full spectrum of undercarriage components for VOLVO EC460/EC480 excavators:

For fleet operators, sourcing a complete undercarriage kit from a single manufacturer ensures component compatibility, simplifies procurement, and enables volume pricing .

6. Why Heavy-Duty EXC Undercarriage Matters

The EC460 and EC480 are VOLVO’s large excavator class, typically operating in:

• Mining: Overburden removal, ore loading, bench preparation
• Quarrying: Primary rock breaking, material handling
• Heavy Construction: Infrastructure projects, foundation excavation
• Forestry & Land Clearing: When equipped with specialized attachments

In these applications, undercarriage components account for 30–50% of total machine maintenance costs over the equipment lifecycle. Selecting high-quality sprockets, idlers, and rollers directly impacts:

• Track Chain Life: Worn sprockets accelerate chain bushing wear
• Machine Uptime: Undercarriage failures cause unplanned downtime
• Operating Cost: Extended component life reduces total cost of ownership

CQC TRACK’s heavy-duty EXC series components are specifically engineered for these demanding applications, with design improvements that address known failure modes in OEM and aftermarket products .

7. Quality Certifications & Standards

All products are manufactured in facilities operating under these certifications, with full documentation available upon request .

8. Ordering Information

Part Number Summary

Incoterms Available

• FOB – China main port
• CIF – Any major port worldwide
• DDP – For qualified customers in select regions

Lead Times

• Stock Items (selected regions): 24–72 hours
• Factory Production: 15–20 working days
• Custom Specifications (ODM): 25–30 working days

9. Contact Information

For inquiries, technical specifications, or to place an order:

CQC TRACK – Heavy Duty Undercarriage Division

• Email: sales@cqctrack.com
• Website: www.cqctrack.com
• Factory Location: China

For regional inquiries, please reference your market in the subject line for prompt routing to the appropriate regional sales manager.

10. Technical Support & Installation Guidance

CQC TRACK provides pre-sales and after-sales technical support, including:

• Fitment verification: Confirming compatibility with your machine serial number
• Installation guidance: Torque specifications, seal orientation, assembly procedures
• Wear analysis: Assessing whether sprocket replacement is required based on wear patterns
• Complete kit recommendations: Optimizing undercarriage component matching for maximum service life

About the Author

JACK is a Senior Undercarriage Specialist at CQC TRACK with over 15 years of experience in heavy equipment undercarriage systems. He has provided technical support and supply solutions to mining and construction operations across Australia, South America, Europe, and Central Asia.

This document is intended for informational purposes. Specifications subject to change without notice. For current specifications and availability, please contact CQC TRACK directly.