Product Introduction

This tapered roller bearing is a critical component of the rear axle differential, specifically designed to support the inner position of the active bevel gear. It efficiently handles the high radial and axial thrust generated during torque transfer, ensuring smooth, low-friction rotation of the drive pinion.

Structure & Material

• Material: High-carbon chromium bearing steel (GCr15), heat-treated to achieve a hard, wear-resistant surface and a tough, impact-resistant core.

• Design: A single-row tapered roller bearing consisting of a cone (inner ring) and cup (outer ring). The tapered geometry is optimized to distribute the combined radial and axial loads from the active bevel gear.

Performance

• Combined Load Handling: The tapered design efficiently supports both heavy radial loads and the significant axial thrust generated by the bevel gear meshing.

• Low Friction & Heat: Precision-machined components minimize rolling friction, reducing heat buildup and extending service life.

• Precision Alignment: Maintains precise positioning of the active bevel gear, ensuring optimal meshing with the differential ring gear.

Durability

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

• The heat-treated construction ensures long-term performance under the extreme operating conditions of heavy-duty trucks.

Core Function

1. Load Support: Bears radial and axial loads at the inner end of the active bevel gear.

2. Precision Alignment: Maintains accurate positioning of the drive pinion for optimal gear meshing.

3. Smooth Rotation: Enables low-friction rotation of the active bevel gear, reducing wear and noise.

Active Bevel Gear Inner Bearing 810W32499-0192 for Sinotruk Sitrak Trucks

When your Sinotruk Sitrak truck demands reliable power transmission through the rear axle, every single component matters — especially the bearings that keep your active bevel gear spinning smoothly. The Active Bevel Gear Inner Bearing 810W32499-0192 is precision-engineered to support gear rotation, minimize friction, and extend drivetrain life under the toughest operating conditions. Sourced directly from our factory, this genuine-spec bearing delivers the durability and dimensional accuracy that fleet managers and procurement professionals expect.

At Mettlead, we specialize in supplying original-quality truck parts for SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON vehicles. With factory-direct pricing and strict quality control, we help you reduce downtime and keep your fleet moving forward.

Key Features and Benefits of the 810W32499-0192 Inner Bearing

This active bevel gear inner bearing isn’t just a replacement part — it’s a performance investment. Here’s what sets it apart:

• Precision-Ground Rollers: Each roller is machined to tight tolerances, ensuring even load distribution across the bearing surface and reducing premature wear.
• High-Grade Bearing Steel: Manufactured from hardened chromium steel, this bearing resists fatigue cracking and maintains structural integrity under heavy axle loads.
• Optimized Friction Reduction: The internal geometry is designed to minimize rolling resistance, which translates into smoother gear engagement and improved fuel efficiency.
• Direct OEM Fitment: Engineered to match the exact dimensions and specifications of the original Sinotruk Sitrak bearing, so installation is straightforward with no modifications required.
• Extended Service Life: Heat-treated raceways and precision-finished surfaces work together to deliver a longer operational lifespan, even in demanding long-haul applications.

In other words, this bearing quietly does the heavy lifting inside your rear axle assembly — supporting the active bevel gear, absorbing radial and axial loads, and keeping everything running without excessive heat or vibration.

Application Scenario: Where Does This Bearing Fit?

The 810W32499-0192 Active Bevel Gear Inner Bearing is specifically designed for the rear axle assembly of Sinotruk Sitrak heavy-duty trucks. Its primary role is to support the active bevel gear (drive pinion gear) during operation. Let’s break down what that means in practice:

• Compatible Vehicles: Sinotruk Sitrak series trucks (C7H, G7, and related models equipped with the matching rear axle configuration).
• Functional Role: This inner bearing sits on the drive pinion shaft, supporting the active bevel gear as it transfers torque from the driveshaft to the ring gear. It absorbs both thrust loads and radial forces generated during acceleration and braking.
• Operational Benefit: By reducing friction at this critical junction, the bearing helps maintain smooth meshing between the bevel gears, prevents excessive heat buildup, and protects surrounding components from premature damage.

Whether your trucks are hauling cargo across highways or navigating rugged terrain, this bearing ensures the rear axle differential operates efficiently and quietly. For more Sitrak rear axle components, explore our Rear Axle Parts Category page.

Technical Specifications

Accurate specifications matter when you’re sourcing bearings for heavy-duty applications. Below you’ll find the key parameters for the 810W32499-0192 inner bearing:

Note: If you need to cross-reference this part number with your specific Sitrak model or axle variant, our team can assist with verification. Simply reach out through our Contact Us page.

OEM and Custom Packaging Capabilities

We understand that different markets have different requirements. That’s why Mettlead offers flexible options to match your business needs:

• White-Label Packaging: Want to sell under your own brand? We provide neutral or custom-branded packaging so you can build your own identity in your local market.
• Custom Labeling: Part numbers, barcodes, and multilingual labels can be tailored to your specifications — making inventory management easier on your end.
• Bulk and Mixed Orders: Whether you need a single bearing type in volume or a mixed container of Sitrak parts, we accommodate flexible order structures.
• Strict Quality Control: Every bearing undergoes dimensional inspection, hardness testing, and surface quality checks before shipment. We don’t cut corners — because a failed bearing means a truck off the road.

For a complete overview of available Sitrak truck components — from engine parts to chassis accessories — visit our Sinotruk Sitrak Truck Parts Full Category Guide.

Frequently Asked Questions About the 810W32499-0192 Active Bevel Gear Inner Bearing

What type of bearing is the 810W32499-0192?

The 810W32499-0192 is a tapered roller bearing. This design is ideal for the active bevel gear position because it can handle both radial loads (perpendicular to the shaft) and axial thrust loads (along the shaft) simultaneously — exactly what the drive pinion demands during torque transfer.

How do I know if this bearing fits my Sitrak truck model?

This bearing is designed for Sinotruk Sitrak trucks that use the 810W32499-0192 part number in their rear axle assembly. To confirm compatibility, you can check your vehicle’s parts catalog or provide us with your VIN and axle model number. Our team will verify the match before shipping.

What are the signs that this inner bearing needs replacement?

Common symptoms of a worn active bevel gear inner bearing include unusual humming or growling noises from the rear axle (especially under load), increased vibration through the drivetrain, excessive play in the drive pinion shaft, and in severe cases, overheating near the differential housing. If you notice any of these, timely replacement prevents costly damage to the bevel gears themselves.

Is this bearing sold individually or as a set?

The 810W32499-0192 is sold as an individual inner bearing. However, many technicians recommend replacing both the inner and outer pinion bearings together during a rear axle overhaul to ensure balanced performance. Contact us if you need the matching outer bearing part number.

What material is used, and how does it affect durability?

This bearing is manufactured from GCr15-equivalent high-carbon chromium steel — the industry standard for high-load rolling element bearings. The material provides excellent hardness (typically 60-64 HRC after heat treatment), fatigue resistance, and dimensional stability, which collectively extend the bearing’s service life under continuous heavy-duty operation.

Can I order this bearing with custom packaging for resale?

Absolutely. Mettlead supports white-label and custom packaging options. You can specify your brand name, logo, part number format, and packaging design. This is especially popular with distributors and aftermarket parts retailers who want to maintain their own brand presence.

Ready to Source Your Sitrak Bearings? Let’s Talk.

Getting the right parts at the right price shouldn’t be complicated. As a factory-direct supplier of Sitrak Heavy-Duty Truck Parts, Mettlead offers competitive pricing, fast lead times, and reliable global shipping — all backed by rigorous quality inspection.

Whether you need a single bearing or a full container of rear axle components, our team is ready to provide a detailed quotation tailored to your requirements.

👉 Contact Us Now to request pricing, confirm part compatibility, or discuss your bulk order needs.

We also welcome factory visits — come see our quality control process firsthand and build a supply partnership you can trust.