OEM WG9003326020
Experience flawless rotary motion with the WG9003326020 Antifriction Bearing 6020 Gb / T276, a premium deep‑groove ball bearing engineered for SINOTRUK Howo transmissions and driveline components. As an integral part of our Sinotruk howo parts family, this bearing is manufactured from high‑carbon chromium steel to GB/T276 standards, delivering exceptional radial and axial load capacity with minimal friction. The WG9003326020 ensures precise shaft alignment, reduces energy loss, and guarantees long‑term reliability under the most demanding heavy‑duty conditions.
| Parameter | Specification |
|---|---|
| OEM Number | WG9003326020 |
| Product Name | Antifriction Bearing 6020 (GB/T276) |
| Bore Diameter (d) | 100 mm |
| Outer Diameter (D) | 150 mm |
| Width (B) | 24 mm |
| Dynamic Load Rating (Cr) | 60.5 kN |
| Static Load Rating (Cor) | 54.0 kN |
| Limiting Speed (grease) | 4,300 rpm |
| Weight | 1.15 kg |
| Tolerance Class | P0 (normal) / optionally P6 |
Manufactured from vacuum‑degassed GCr15 bearing steel, ensuring uniform microstructure and exceptional fatigue life under cyclic loads.
All critical dimensions are held to ISO P0 tolerances, with optional P6 for applications requiring ultra‑precise shaft location.
The pressed steel cage guides rollers precisely, reducing friction and allowing higher speeds while maintaining strength.
Every bearing is subjected to vibration analysis to guarantee smooth, quiet operation and detect any internal defects.
This bearing is a direct replacement for the following SINOTRUK Howo transmission and driveline positions:
The WG9003326020 antifriction bearing is manufactured from high‑grade GCr15 bearing steel, which is first forged into rings, then precision machined and heat‑treated to achieve a uniform hardness of 60‑64 HRC. The rings undergo controlled quenching and tempering to relieve internal stresses and optimize microstructure. The balls are made from the same material and are ground and lapped to achieve sphericity within 0.5 µm, ensuring minimal friction and quiet operation.
In heavy‑duty Howo transmissions, bearings like the WG9003326020 support rotating shafts under high radial and axial loads. Its deep‑groove raceway design allows it to accommodate moderate thrust loads in both directions, making it ideal for gearbox applications where shaft positioning is critical. The bearing’s internal clearance is carefully selected (CN group) to allow for thermal expansion while maintaining precise shaft alignment.
Installation of this bearing must be performed using proper tools to avoid damage. Heat the bearing to 80‑100°C for mounting on the shaft, or use an induction heater. Never apply force through the rolling elements. The bearing should be pressed onto the shaft using a sleeve that contacts only the inner ring. After installation, verify that the bearing rotates smoothly and that there is no excessive play.
Quality control is rigorous: each WG9003326020 bearing is 100% inspected for dimensions (bore, OD, width) using air gauges. Vibration levels are measured to ISO 15242 standards, and bearings are categorized into vibration grades. Samples from each batch are tested for hardness and microstructure. These checks guarantee that the bearing you receive will perform as reliably as the original component.
Environmental responsibility is integrated into production. The steel contains a high percentage of recycled content, and all grinding swarf is recycled. The heat treatment process uses energy‑efficient furnaces with low emissions. At the end of its long service life, the bearing is 100% recyclable as steel scrap.
For transmission rebuilders, the WG9003326020 bearing is available individually or as part of a complete bearing kit. Each bearing is packaged in anti‑corrosion paper and sealed in a plastic bag to preserve the protective oil film. Bulk orders are shipped in partitioned boxes with desiccant. A certificate of conformance with actual measurement data is included with every shipment.
Field performance data collected from over 300 heavy‑duty trucks shows that this bearing has a mean time between failures exceeding 700,000 kilometers when properly lubricated. Its robust construction and precision manufacturing reduce friction and heat, contributing to improved fuel efficiency and extended transmission life.
When ordering, always verify the exact bearing position and required clearance. The WG9003326020 is specifically designed for Howo HW19710 and HW19712 series transmissions. For other applications, consult the SINOTRUK parts catalog. Technical support is available through your local dealer – no contact details are listed here, in line with our policy.
In summary, the WG9003326020 antifriction bearing is a precision component that ensures smooth, reliable rotation in SINOTRUK Howo transmissions and drivelines. Its high‑grade material, exacting tolerances, and rigorous inspection make it the ideal choice for any heavy‑duty rebuild.
During teardown, inspect the WG9003326020 bearing for signs of pitting, spalling, or discoloration. Rotate the bearing by hand to feel for roughness or noise.
Use only the recommended grease or transmission oil. Relubricate at intervals specified in the maintenance manual to ensure long bearing life.
Only the authentic WG9003326020 bearing uses the exact steel grade and heat treatment specified by SINOTRUK. Imitations often use lower‑grade steel with inconsistent hardness, leading to premature failure and costly downtime. The genuine bearing is 100% noise‑tested and traceable to an ISO 9001 certified facility. Fleet data shows that OEM bearings reduce drivetrain failures by 60%.
Preparation: Clean the shaft and housing thoroughly. Apply a thin film of oil to the mating surfaces. Never spin a dry bearing.
Mounting: Heat the WG9003326020 bearing evenly to 90°C and slide onto the shaft. Use a sleeve to press against the inner ring only.
After mounting, allow the bearing to cool, then check that it rotates freely. Fill with the correct amount of grease if required.
Superfinished raceways and precision balls ensure quiet running, reducing transmission whine and improving driver comfort.
The bearing retains its dimensional stability and hardness up to 150°C, ensuring reliable operation in high‑temperature environments.
Steel contains >85% recycled content; 100% of grinding swarf is recycled.
At end of life, the bearing is 100% recyclable, supporting a circular economy.
Every WG9003326020 bearing is laser marked with the part number and a date code for full traceability. When you order from our official distribution channel, you receive the latest production with improved raceway microgeometry for even lower friction.
To verify authenticity, check the smooth finish and the precise markings. Our global network ensures rapid delivery to any heavy‑duty workshop. Trust this bearing to keep your Howo transmission spinning smoothly – it’s the foundation of reliable power transmission.
WG9003326020 – 100% Genuine SINOTRUK Howo Antifriction Bearing 6020 Gb / T276 • Built for the long haul • No forms, just quality parts.
