Product Introduction

• Structure: An integrated assembly consisting of a high-strength 40Cr forging hub and an internal gear ring. The outer face features a precision-machined cone friction surface, and the inner bore has splines for engagement with the main shaft. The internal gear ring (54 teeth) meshes with the synchronizer sleeve, while the cone surface works with the synchronizer ring to achieve speed synchronization.

• Performance: The MoS₂-coated cone surface provides high friction coefficient for rapid speed synchronization (≤0.3s per shift) even under 2500N·m torque. The carburized hub and gear ring resist wear and impact, ensuring over 50,000 shift cycles without deformation. The integrated design eliminates assembly gaps, maintaining precise alignment with the synchronizer ring and sleeve.

Core Function

1. Heavy-load synchronization: The cone friction surface works with the synchronizer ring to equalize the speed of the low gear and main shaft, enabling smooth shifting under heavy load.

2. Gear engagement: The internal gear ring meshes with the synchronizer sleeve to lock the low gear to the main shaft, transmitting torque.

3. Precision alignment: The splined inner bore ensures concentric engagement with the main shaft, reducing meshing noise and wear.

Low Gear Cone Hub Assy AZ2203100005 – SINOTRUK HW Series Gearbox Replacement Part

When your SINOTRUK HW series gearbox demands a reliable low gear cone hub assembly, precision matters more than anything else. The Low Gear Cone Hub Assy AZ2203100005 is engineered to deliver seamless torque transfer and long-lasting durability under the most demanding operating conditions. At Mettlead, we supply this critical SINOTRUK HOWO gearbox part directly from our factory, ensuring you receive genuine-spec quality at competitive wholesale pricing.

Whether you are managing a fleet maintenance program or sourcing components for aftermarket distribution, this low gear cone hub assy is designed to restore your HW series gearbox to peak performance — quickly and cost-effectively.

Key Features and Benefits of Low Gear Cone Hub Assy AZ2203100005

This SINOTRUK HW series gearbox cone hub assembly is far more than a simple replacement part. It is a precision-machined component that plays a vital role in smooth gear engagement and power transmission. Here is what sets it apart:

• OE-Spec Precision Manufacturing: The AZ2203100005 low gear cone hub assy is produced to original equipment dimensions and tolerances, ensuring a perfect fit within the HW series gearbox housing without any modifications.
• Superior Material Composition: Crafted from high-strength alloy steel, this cone hub assembly resists wear, fatigue, and thermal deformation even under heavy-load, continuous-duty cycles.
• Optimized Friction Surface: The cone surface is precisely finished to provide consistent synchronizer engagement, reducing gear clash and promoting smooth low-gear shifting throughout the component’s service life.
• Extended Service Life: Thanks to rigorous heat treatment and surface hardening processes, this part outlasts generic alternatives, which means fewer replacements and lower total cost of ownership for fleet operators.
• Factory-Direct Cost Advantage: By sourcing the Low Gear Cone Hub Assy AZ2203100005 directly from Mettlead, you eliminate middlemen and enjoy wholesale pricing that protects your profit margins.
• Fast Global Delivery: Our streamlined logistics network ensures your gearbox parts reach you on time — minimizing vehicle downtime and keeping your operations running smoothly.

Technical Specifications – AZ2203100005 Low Gear Cone Hub Assy

Accurate specifications matter when you are sourcing gearbox components for the SINOTRUK HW series. Below, you will find the detailed parameters for this low gear cone hub assembly:

Application Scenario – Where Does the AZ2203100005 Cone Hub Assy Fit?

The Low Gear Cone Hub Assy AZ2203100005 is specifically designed for the low-speed gear synchronization system within the SINOTRUK HW series gearbox. This assembly sits on the main shaft and works in coordination with the synchronizer ring and sliding sleeve to facilitate smooth engagement of the low gear.

In practical terms, this component is essential for:

• Heavy-haul operations where trucks frequently engage low gear under maximum torque — such as mining site transport, construction material hauling, and steep-grade climbing.
• Stop-and-go urban logistics where repeated low-gear engagement demands a wear-resistant, precisely machined cone hub to prevent premature gearbox failure.
• Fleet overhaul and preventive maintenance programs where procurement managers replace cone hub assemblies proactively to avoid costly roadside breakdowns.

Compatible Vehicle Models Include:

• SINOTRUK HOWO A7, HOWO T7H, HOWO TX
• SINOTRUK SITRAK C7H, SITRAK G7
• SINOTRUK Steyr series
• Any heavy-duty truck platform equipped with HW19710 / HW15710 / HW19712 transmission

Looking for more gearbox components and transmission parts? Mettlead stocks a comprehensive range of SINOTRUK HW series gearbox spares to support your complete rebuild and maintenance needs.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

At Mettlead, we understand that different markets have different branding and packaging requirements. That is why we offer flexible OEM and ODM solutions for the Low Gear Cone Hub Assy AZ2203100005 and our entire SINOTRUK HOWO truck parts catalog:

• White-Label Packaging: We supply parts in neutral packaging, allowing you to apply your own brand identity for local market distribution.
• Custom Packaging Design: Need branded boxes, labels, or barcoding for specific retail or wholesale channels? Our packaging team handles it all.
• Strict Quality Control: Every Low Gear Cone Hub Assy AZ2203100005 undergoes dimensional inspection, material verification, and hardness testing before shipment — so you can confidently put your brand name on it.
• Flexible MOQ: Whether you need a trial order of 10 pieces or a container load, we accommodate your volume requirements with consistent pricing and quality.

Additionally, we welcome customers to visit our facilities in China for on-site inspection and quality audits. Seeing our production process firsthand gives you the confidence to build a long-term sourcing partnership.

Customer Case Study – AZ2203100005 Low Gear Cone Hub Assy for East African Fleet

In early 2024, a fleet management company operating over 200 SINOTRUK HOWO trucks across East Africa approached Mettlead with a recurring gearbox failure problem. Their vehicles were experiencing premature low gear synchronizer wear, leading to costly unplanned downtime on major transport corridors.

After analyzing their maintenance records, our technical team identified that the Low Gear Cone Hub Assy AZ2203100005 in their HW series gearboxes was failing prematurely due to substandard aftermarket parts sourced from a previous supplier. The cone surface finish was inconsistent, and the material hardness did not meet OE specifications.

We supplied 500 units of our factory-inspected AZ2203100005 low gear cone hub assemblies with full dimensional and hardness certification. Within six months of installation, the client reported:

• A 72% reduction in low-gear-related gearbox failures across their fleet
• 40% lower procurement cost compared to their previous source, thanks to our factory-direct pricing
• Zero returns or quality complaints on the entire batch

Today, this client sources their complete SINOTRUK HW series gearbox spare parts inventory exclusively from Mettlead — including synchronizer rings, sliding sleeves, main shaft assemblies, and cone hub assemblies.

Frequently Asked Questions – Low Gear Cone Hub Assy AZ2203100005

What is the function of the Low Gear Cone Hub Assy in the HW series gearbox?

The low gear cone hub assy serves as the friction coupling element in the synchronizer mechanism. When you shift into low gear, the cone hub’s tapered surface contacts the synchronizer ring, equalizing shaft speeds before gear engagement occurs. In other words, this component is what makes your low gear shifts smooth and clash-free. A worn or poorly manufactured cone hub leads to hard shifting, gear grinding, and eventually, complete synchronizer failure in your SINOTRUK HW gearbox.

How do I know when the AZ2203100005 cone hub assembly needs replacement?

Several symptoms indicate that your Low Gear Cone Hub Assy AZ2203100005 has reached the end of its service life. Look out for difficulty engaging low gear, grinding noises during downshifts, or the gearbox popping out of low gear under load. During a gearbox teardown, visible wear grooves on the cone surface, reduced cone taper angle, or spline damage on the hub body all confirm the need for replacement.

Is this cone hub assy compatible with all HW series gearbox variants?

Yes, the AZ2203100005 Low Gear Cone Hub Assy is designed to fit across the HW series gearbox family, including the HW19710, HW15710, HW19712, and related variants installed in SINOTRUK HOWO, SITRAK, and Steyr heavy-duty trucks. However, if you are unsure about compatibility with a specific gearbox model, our technical team can verify the correct part number based on your gearbox nameplate data.

What material is the AZ2203100005 low gear cone hub assy made from?

Our Low Gear Cone Hub Assy AZ2203100005 is manufactured from high-strength alloy steel that undergoes carburizing and quenching heat treatment. This process creates a hard, wear-resistant outer surface while maintaining a tough, shock-absorbing core — the ideal combination for a component that endures repeated high-friction contact cycles inside the gearbox.

Can I order the Low Gear Cone Hub Assy AZ2203100005 with custom branding?

Absolutely. Mettlead offers white-label and custom packaging options for this cone hub assembly and all our SINOTRUK gearbox parts. You can add your own brand name, part number, and packaging design. This is particularly valuable for distributors who want to build brand recognition in their local aftermarket while sourcing quality parts at factory-direct prices.

What quality control measures are applied to this part?

Every AZ2203100005 Low Gear Cone Hub Assy undergoes a multi-point inspection process including CNC dimensional verification, surface roughness measurement, Rockwell hardness testing, and visual inspection for machining defects. We maintain batch traceability, so in the unlikely event of a quality concern, we can track production records all the way back to the raw material lot.

Ready to Source Your Low Gear Cone Hub Assy AZ2203100005?

Stop overpaying for gearbox parts through middlemen. With Mettlead, you get the Low Gear Cone Hub Assy AZ2203100005 for your SINOTRUK HW series gearbox at true factory-direct pricing — backed by strict quality control, flexible packaging options, and dependable global shipping.

Whether you need a sample for testing or bulk quantities for ongoing fleet maintenance, our team is ready to provide a competitive quotation tailored to your requirements.

Take the next step today:

• Get a fast, no-obligation quote for AZ2203100005 and related HW gearbox parts
• Request technical datasheets or compatibility confirmation
• Ask about volume discounts and custom packaging solutions

👉 Contact us now to discuss your SINOTRUK gearbox parts requirements and discover why procurement managers across Africa, the Middle East, and Southeast Asia trust Mettlead as their go-to source for SINOTRUK HOWO truck parts.