Product Introduction

This cylindrical roller bearing kit is a key drivetrain component, designed to handle high radial loads in rotating assemblies like transmissions and differentials, while maintaining low friction and precise alignment.

Structure & Material

• Material: High-carbon chromium bearing steel (GCr15), heat-treated for high hardness, wear resistance, and fatigue strength.

• Design: A separable cylindrical roller bearing with a removable inner ring. The design allows easy installation and maintenance, and the full-complement rollers maximize radial load capacity.

Performance

• High Radial Load Capacity: Full-complement roller design supports heavy radial loads, ideal for high-torque drivetrain components.

• Low Friction: Cylindrical geometry minimizes rolling friction, reducing heat buildup during operation.

• Alignment Tolerance: Accommodates minor shaft/housing misalignment to prevent premature wear.

Durability

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

• Separable design simplifies inspection and re-lubrication, extending service life.

Core Function

1. Radial Load Support: Bears heavy radial forces in transmission/differential assemblies.

2. Smooth Power Transfer: Enables low-friction rotation of gears and shafts.

3. Alignment Accommodation: Tolerates minor misalignment to protect components.

Roller Bearing 322722 810W32589-0069 for Sinotruk Sitrak – Factory Direct Supply

When your Sinotruk Sitrak heavy-duty truck demands reliable load-bearing performance and minimal rotational friction, the Roller Bearing 322722 (OEM: 810W32589-0069) delivers exactly that. Engineered to withstand extreme axial and radial loads, this precision-manufactured bearing keeps your rear axle assembly running smoothly — mile after mile, load after load. At Mettlead, we supply this genuine-spec component directly from our factory, which means you get OEM-equivalent quality without the inflated middleman markup.

Key Features and Benefits of Roller Bearing 322722 810W32589-0069

This roller bearing isn’t just another replacement part sitting on a shelf. It’s a critical drivetrain component that your Sitrak truck relies on every single day. Here’s what sets it apart:

• Superior Load Capacity: Designed to handle heavy radial and axial loads simultaneously, this bearing supports the demanding weight distribution requirements of Sinotruk Sitrak heavy-duty vehicles.
• Reduced Operational Friction: The precision-ground rolling elements minimize rotational resistance, which translates directly into smoother drivetrain operation and improved fuel efficiency over time.
• Extended Service Life: Manufactured with high-grade bearing steel and advanced heat treatment processes, the Roller Bearing 322722 resists premature wear, fatigue, and thermal degradation.
• Exact OEM Fitment: Part number 810W32589-0069 ensures a precise, drop-in replacement with no modifications required — saving your workshop valuable installation time.
• Corrosion Resistance: Surface treatment protects against moisture and contaminants commonly encountered in harsh operating environments.

In other words, this bearing does the heavy lifting so your truck doesn’t have to work harder than necessary. Moreover, fewer friction losses mean less heat buildup, which ultimately protects surrounding drivetrain components from collateral damage.

Technical Specifications

Accuracy matters when you’re sourcing bearings for a heavy-duty fleet. The following table outlines the precise parameters of the Roller Bearing 322722 810W32589-0069:

Each Roller Bearing 322722 undergoes strict dimensional inspection and surface quality checks before shipment. As a result, you can trust that every unit meets the tolerances your Sitrak rear axle demands.

Application Scenario: Where This Bearing Works Hardest

The Roller Bearing 322722 810W32589-0069 is specifically designed for the rear axle system of Sinotruk Sitrak heavy-duty trucks. In this application, the bearing performs two essential functions:

1. Load Bearing: It supports the substantial weight transferred through the rear axle during fully loaded hauls, distributing force evenly across the rolling elements to prevent localized stress concentrations.
2. Friction Reduction: By replacing sliding contact with rolling contact, this bearing dramatically cuts rotational resistance within the axle assembly. Consequently, the drivetrain operates cooler and more efficiently under sustained highway speeds or stop-and-go urban delivery conditions.

Whether your Sitrak fleet handles long-distance logistics, construction site transport, or heavy cargo distribution, this roller bearing is built to endure the punishment. Furthermore, its compatibility with the Sitrak platform means your maintenance team can standardize on a single part number across multiple vehicles in the fleet.

Looking for more rear axle components? Browse our complete Rear Axle Parts catalog, or explore the full range of Sitrak Heavy-Duty Parts available from Mettlead.

OEM/ODM Capability

At Mettlead, we understand that different markets have different requirements. That’s precisely why we offer flexible manufacturing and packaging solutions tailored to your business needs:

• White-Label Packaging: Need to sell under your own brand? We provide neutral or custom-branded packaging that aligns with your company identity — no minimum design fees for established partners.
• Custom Packaging Solutions: From individual poly bags to branded carton boxes with your logo, part number labels, and barcodes, we accommodate your specific packaging workflow.
• Strict Quality Control: Every batch of Roller Bearing 322722 passes through multi-stage inspection including dimensional verification, hardness testing, and rotational noise assessment. We don’t ship what we wouldn’t install ourselves.
• Bulk Order Flexibility: Whether you need 50 pieces for a trial order or 5,000 units for quarterly stock replenishment, our production capacity scales to match your demand cycle.

In addition, our team can provide technical documentation, installation guides, and cross-reference charts to support your after-sales service. This way, your customers receive not just a part, but a complete solution.

Frequently Asked Questions About Roller Bearing 322722 810W32589-0069

What truck models does the Roller Bearing 322722 810W32589-0069 fit?

This roller bearing is specifically designed for the rear axle assembly of Sinotruk Sitrak heavy-duty trucks. The OEM part number 810W32589-0069 ensures direct compatibility without any modification. If you’re unsure about fitment for a specific Sitrak model variant, our technical team can verify cross-references for you.

What material is the Roller Bearing 322722 made from?

The bearing is manufactured from GCr15 high-carbon chromium bearing steel, which is the industry-standard material for heavy-duty roller bearings. This steel grade offers excellent hardness (HRC 60–65), fatigue resistance, and dimensional stability under high-load conditions.

How long does the Roller Bearing 322722 typically last?

Service life depends on operating conditions, load frequency, and maintenance practices. However, under normal operating conditions with proper lubrication, this bearing is engineered to match or exceed OEM service intervals. Regular inspection during scheduled maintenance helps maximize its operational lifespan.

Can I order the Roller Bearing 322722 with custom branding?

Absolutely. Mettlead offers white-label and custom packaging options for this bearing. You can have your brand name, logo, and part numbering system printed on the packaging. This is particularly useful for distributors and aftermarket retailers building their own brand presence.

How does this bearing reduce friction in the rear axle?

The cylindrical rolling elements inside the bearing convert what would otherwise be sliding friction into rolling friction. This fundamental mechanical advantage reduces energy loss, lowers operating temperatures, and decreases wear on mating surfaces within the axle housing. As a result, the entire drivetrain operates more efficiently.

What quality inspections does this bearing undergo before shipping?

Each Roller Bearing 322722 passes through dimensional accuracy checks, surface roughness measurement, hardness verification, and rotational noise testing. Additionally, random samples from each production batch undergo accelerated life testing to validate durability under simulated heavy-load conditions.

For a comprehensive overview of all available Sinotruk Sitrak components, visit our Sinotruk Sitrak Truck Parts Full Category Guide.

Ready to Source Your Roller Bearing 322722 810W32589-0069?

Stop overpaying for middleman markups. Mettlead delivers factory-direct pricing on genuine-spec Sinotruk Sitrak roller bearings — backed by strict quality control, flexible packaging options, and reliable global shipping. Whether you need a sample order to verify quality or a bulk shipment to restock your warehouse, we’re ready to move at your pace.

Get your competitive quote today. Send us your quantity requirements, preferred packaging format, and delivery destination. Our team typically responds within 24 hours with a detailed offer including pricing tiers, lead time, and shipping options.

👉 Contact Us Now to Request a Quote

Mettlead — Your trusted factory-direct source for SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON truck parts. Global supply, local reliability.