Product Introduction

This sealed tapered roller bearing is a critical component for heavy-duty truck clutch and axle systems, designed to handle both radial forces and axial thrust while protecting against contamination for long, maintenance-free operation.

Structure & Material

• Material: High-carbon chromium bearing steel (GCr15), heat-treated for hardness, wear resistance, and fatigue strength. The integrated seal uses nitrile rubber (NBR) for oil resistance.

• Design: A single-row tapered roller bearing with an integrated sealing system (marked by the green indicator). The tapered geometry efficiently supports combined radial and axial loads, while the seal blocks dirt and retains lubrication.

Performance

• Combined Load Handling: The tapered design efficiently supports both heavy radial loads and significant axial thrust, ideal for clutch release and axle applications.

• Contamination Protection: The integrated seal prevents dirt, water, and debris from entering, ensuring consistent lubrication and reducing maintenance needs.

• Low Friction: Precision-machined components minimize rolling friction and heat buildup during high-speed operation.

Durability

• Bearing steel resists pitting, spalling, and deformation under continuous heavy loads and shock impacts.

• The sealed design maintains lubrication integrity, extending service life in harsh operating environments.

Core Function

1. Load Support: Bears combined radial and axial loads in clutch release or axle assemblies.

2. Contamination Resistance: Sealed design protects internal components and retains lubrication.

3. Smooth Operation: Enables low-friction rotation for clutch engagement/disengagement or axle rotation.

Tapered Roller Bearing AZ400741710005 for Sinotruk Sitrak – Factory Direct Supply

When your Sinotruk Sitrak heavy-duty truck demands reliable rotational stability under extreme loads, the Tapered Roller Bearing AZ400741710005 delivers exactly that. Engineered to handle both radial and axial forces simultaneously, this precision-crafted bearing keeps your drivetrain running smoothly — mile after mile, load after load. At Mettlead, we supply this genuine-spec component directly from our factory in China, which means you get OEM-quality performance without the inflated middleman pricing.

Why Choose the Tapered Roller Bearing AZ400741710005?

This isn’t just another bearing sitting on a shelf. The AZ400741710005 tapered roller bearing is purpose-built for the demanding operating conditions that Sitrak trucks face daily. Here’s what makes it stand out:

• Dual-Load Capacity: The tapered geometry allows this bearing to absorb both radial and axial loads at the same time, preventing premature wear in high-stress drivetrain applications.
• Rotational Stability: Precision-ground rollers and raceways ensure smooth, vibration-free rotation — even when your truck is hauling maximum payload over rough terrain.
• Extended Service Life: High-grade bearing steel with optimized heat treatment resists fatigue, pitting, and spalling, so you spend less time on replacements and more time on the road.
• Exact OEM Fitment: Manufactured to match the original Sinotruk specifications, this bearing drops right into place without modification or guesswork.
• Cost-Effective Maintenance: Factory-direct pricing from Mettlead means you can stock critical spares without stretching your procurement budget.

Application Scenario

The Tapered Roller Bearing AZ400741710005 is specifically designed for the Sinotruk Sitrak series of heavy-duty trucks. Installed within the rear axle assembly, this tapered roller bearing shoulders the combined radial and axial loads generated during acceleration, braking, and cornering. Its primary role is to maintain rotational stability across the drivetrain, ensuring that power transfers efficiently from the differential to the wheels. Whether your fleet operates in long-haul logistics, mining transport, or construction haulage, this bearing provides the durability and precision that heavy commercial vehicles require.

Looking for more rear axle components? Browse our complete Rear Axle Parts catalog for compatible items.

Technical Specifications

Need the full Sitrak parts catalog? Visit our Sitrak Heavy-Duty Parts brand page for a comprehensive listing. You can also explore our Sinotruk Sitrak Truck Parts Full Category Guide for cross-referenced components.

OEM/ODM Capability

At Mettlead, we understand that different markets have different requirements. That’s why we offer flexible OEM and ODM services tailored to your business needs:

• White-Label Packaging: We can ship the Tapered Roller Bearing AZ400741710005 in neutral packaging or under your own brand label — perfect for distributors building their private-label parts business.
• Custom Packaging Design: Need specific box dimensions, multilingual labels, or branded inserts? Our packaging team handles it all.
• Strict Quality Control: Every bearing undergoes dimensional inspection, surface finish verification, and hardness testing before it leaves our facility. We don’t cut corners, because your reputation depends on the parts you sell.
• Bulk Order Flexibility: Whether you need 50 pieces or 5,000, our production capacity scales to match your demand with consistent lead times.
• Factory Visits Welcome: We encourage procurement managers to visit our facility in China. Seeing our quality processes firsthand builds the trust that long-term partnerships require.

Frequently Asked Questions

What type of bearing is the AZ400741710005?

The AZ400741710005 is a tapered roller bearing. Its conical roller design allows it to support combined radial and axial loads simultaneously, which makes it ideal for rear axle applications where forces come from multiple directions during vehicle operation.

Which trucks does this tapered roller bearing fit?

This bearing is specifically designed for the Sinotruk Sitrak heavy-duty truck series. It matches the original equipment specifications, so it installs directly without any modifications to the housing or shaft.

How does a tapered roller bearing differ from a standard ball bearing?

Unlike ball bearings that use spherical rolling elements, tapered roller bearings use conical rollers arranged at an angle. This geometry distributes loads across a larger contact area, giving them significantly higher load capacity — especially important in heavy commercial vehicles where axle loads can exceed several tonnes.

What material is the AZ400741710005 bearing made from?

It’s manufactured from GCr15 high-carbon chromium bearing steel, heat-treated to achieve a surface hardness of HRC 60–65. This material offers excellent fatigue resistance, wear resistance, and dimensional stability under heavy loads and high temperatures.

Can I order this bearing with my own brand packaging?

Absolutely. Mettlead offers white-label and custom packaging services. You can supply your own artwork, or our design team can help create packaging that matches your brand identity. Minimum order quantities apply for custom packaging runs.

What is the typical lead time for bulk orders?

For standard stock items like the AZ400741710005, we typically ship within 3–7 business days. Larger bulk orders or custom-packaged shipments may require 10–15 business days depending on quantity and packaging specifications.

How should I store tapered roller bearings before installation?

Store them in a clean, dry environment away from direct sunlight and moisture. Keep the original packaging intact until installation to prevent contamination. Bearings stored properly in their factory packaging maintain full performance for up to 3 years.

Ready to Secure Your Supply?

Stop overpaying for Sinotruk Sitrak bearings through multiple intermediaries. With Mettlead’s factory-direct model, you get the Tapered Roller Bearing AZ400741710005 at competitive pricing, with reliable delivery timelines and flexible payment options that protect both parties.

Whether you need a sample for quality verification or you’re ready to place a bulk order, our team responds to inquiries within 24 hours. Let’s talk numbers.

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