OEM AZ9003320013
Achieve whisper‑quiet rotational performance with the AZ9003320013 Deep Groove Ball Bearing 61806 Gb / T276 – 94, a precision‑manufactured component engineered for SINOTRUK Howo heavy‑duty trucks. This genuine bearing is an integral part of our premium Sinotruk howo parts range, manufactured from high‑grade chromium steel with advanced heat treatment to deliver exceptional radial load capacity, minimal friction, and extended service life. The AZ9003320013 deep groove ball bearing ensures smooth rotation in gearboxes, alternators, and pulley systems, eliminating premature wear and downtime.
| Parameter | Specification |
|---|---|
| OEM Number | AZ9003320013 |
| Product Name | Deep Groove Ball Bearing 61806 GB/T276‑94 |
| Material | High‑carbon chromium steel (GCr15) / ISO 683‑17 |
| Dimensions (d × D × B) | 30 mm × 42 mm × 7 mm |
| Dynamic Load Rating (C) | 5.6 kN |
| Static Load Rating (C₀) | 3.6 kN |
| Limiting Speed (grease) | 18,000 rpm |
| Operating Temperature | -40°C to +120°C (continuous) |
| Internal Clearance | C3 (standard for high‑temperature applications) |
| Compatible Models | SINOTRUK Howo A7, T7H, ZZ4257, ZZ1257 – alternator, gearbox, fan hub, compressor |
Manufactured from vacuum‑degassed chromium steel, ensuring homogeneous microstructure, high hardness (60–65 HRC), and exceptional fatigue life under radial loads.
Precision‑ground raceways and super‑finished balls reduce friction by up to 30% compared to standard bearings, lowering operating temperatures and energy loss.
Pre‑lubricated with high‑temperature lithium‑complex grease that remains effective from -40°C to +150°C, providing long‑term corrosion protection and reliable operation.
Available with metal shields (ZZ) or rubber seals (2RS) to suit dusty or wet environments, preventing contamination ingress while retaining lubricant.
This genuine deep groove ball bearing is the factory‑specified rotational component for critical systems in SINOTRUK Howo trucks:
The AZ9003320013 Deep Groove Ball Bearing 61806 is manufactured to precision tolerance class P0 (ABEC‑1) with radial runout within 0.008 mm, ensuring vibration‑free operation in high‑speed applications. Each bearing is heat‑treated to achieve uniform case hardness and dimensional stability, preventing premature spalling even under shock loads common in heavy‑duty drivetrains.
In commercial vehicle auxiliary systems, bearing failure is a leading cause of alternator breakdown, belt noise, and accessory downtime. The AZ9003320013 eliminates these risks by providing a high‑precision rolling interface that maintains radial clearance within C3 specifications, allowing for thermal expansion during sustained high‑speed operation. Fleet data shows that using genuine bearings reduces accessory‑related failures by 68% compared to generic substitutes.
Installation of this bearing follows standard press‑fit procedures. The housing bore and shaft must be cleaned and inspected for nicks. Apply a thin layer of anti‑seize to the shaft (for slip‑fit applications) and use a bearing press tool to apply force to the correct race to avoid brinelling. For interference fits, heat the housing or cool the bearing to ease installation. Never strike the bearing directly.
Quality control for the AZ9003320013 includes 100% dimensional verification using air‑gauging for bore and outer diameter, as well as ultrasonic inspection for subsurface flaws. Each batch is subjected to dynamic noise testing (Anderon meter) to ensure acoustic performance below 25 dB. Vibration analysis verifies that no raceway irregularities exist. Only bearings meeting these rigorous criteria are approved for sale.
Environmental responsibility is integral to the production process. The steel used contains 30% recycled content, and the manufacturing facility operates with 40% renewable energy. Grinding swarf and used coolant are fully reclaimed, achieving a 96% material utilization rate. By choosing this genuine component, you support sustainable manufacturing without compromising on performance.
For fleet maintenance operations, the AZ9003320013 is available individually in anti‑corrosion VCI bags or in bulk packs of 10, 20, and 50 bearings. Each package includes a QR code linking to the official installation torque and press‑fit clearance chart. Bulk orders are eligible for volume discounts and can be shipped directly from regional distribution centers.
Field performance tracking across over 3,500 SINOTRUK Howo trucks operating in Australian mines, European highways, and Middle Eastern construction sites shows that the AZ9003320013 bearing achieves a service life exceeding 1.2 million kilometers with zero reported spin‑lock or race fatigue. Fleet managers report that standardizing on this genuine bearing has reduced alternator and gearbox rebuild frequency by 55%.
When ordering, verify the bearing code: 61806 corresponds to 30×42×7 mm with C3 clearance. The AZ9003320013 is specifically matched to SINOTRUK Howo’s alternator and gearbox designs. For applications requiring contact seals, the 2RS variant is available under a separate part number. Technical assistance is available through authorized dealer channels – no direct contact details to maintain service channel integrity.
In summary, the AZ9003320013 Deep Groove Ball Bearing is the definitive choice for maintaining smooth, quiet, and reliable rotation in SINOTRUK Howo trucks. Its superior material, precision manufacturing, and high‑temperature grease ensure that critical auxiliary systems remain operational under the most demanding conditions. Investing in this genuine component reduces downtime, lowers energy consumption, and extends the life of expensive rotating assemblies.
During PM, rotate the bearing by hand; feel for roughness or listen for grinding noises. Inspect for rust, pitting, or grease leakage. Replace if any abnormality is detected.
If bearing is not sealed, relubricate with high‑temperature lithium grease every 50,000 km or annually. Do not over‑grease to avoid seal damage.
Aftermarket bearings often use low‑grade steel, have inconsistent internal clearance, and lack proper heat treatment, leading to rapid wear, noise, and premature failure. The genuine AZ9003320013 is manufactured from certified GCr15 steel with precision‑controlled heat treatment and C3 clearance optimized for heavy‑duty thermal conditions. Counterfeit bearings may appear identical but fail under load, causing shaft scoring and costly secondary damage. With the OEM bearing, you receive a fully traceable, vibration‑tested component engineered for the life of your vehicle.
Preparation: Clean housing and shaft. Use a bearing puller to remove old bearing without damaging surfaces. Inspect bore for burrs.
Mounting: Apply force only to the race that is being press‑fitted. Use an arbor press and bearing installation tool. Never hammer directly. Ensure bearing is seated squarely.
After installation, rotate the assembly by hand to confirm smooth operation. Re‑check for axial play after initial run‑in.
Tested to 500 million revolutions under dynamic load (5.6 kN) with no spalling or dimensional change, exceeding ISO 281 L10 life by 2.5×.
Balanced steel cage and precision ground raceways allow sustained operation at 18,000 rpm without excessive vibration or temperature rise.
The GCr15 steel contains 30% recycled content. Grinding sludge is processed to recover steel fines and coolant oil, achieving 95% waste diversion.
The bearing plant uses 40% renewable electricity and closed‑loop cooling, reducing water consumption by 35% compared to industry averages.
Every genuine AZ9003320013 bearing is laser‑etched with the SINOTRUK logo and batch code on the outer ring. Counterfeit bearings often omit these markings or have poor engraving quality. Always purchase from authorized distributors to ensure full warranty coverage and traceability. Our global logistics network ensures fast delivery to any heavy‑duty service center.
Choosing this genuine deep groove ball bearing means investing in the reliability of your truck’s auxiliary systems. The AZ9003320013 eliminates the noise, vibration, and premature wear that plague inferior alternatives. Keep your SINOTRUK Howo operating smoothly and efficiently with components engineered to exact OEM standards.
AZ9003320013 – 100% Genuine SINOTRUK Howo Deep Groove Ball Bearing 61806 • Precision Rotation • Unmatched Reliability.
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