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Achieve reliable heavy vehicle performance with the Large Size Double Row Angular Contact Ball Bearing 3318-a, engineered to deliver P4 precision for smooth operation even under demanding loads. This bearing combines separated raceway design with high-strength bearing steel construction, ensuring exceptional radial and axial load handling—critical for reducing equipment downtime in heavy-duty applications.
| Parameter | Details |
|---|---|
| Model NO. | Double Row Angular Contact Ball Bearing |
| Separated | Separated |
| Rows Number | Double |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Precision Rating | P0 P2 P4 P5 P6 |
| Type | Ball |
| Structure | Angular Contact |
| Cage | Steel Cage, Copper Cage, Nylon Cage |
| Lubrication | Oil Grease |
| Transport Package | Carton Pallet |
| Specification | As Your Request |
| Trademark | SKF |
| Origin | Jiangsu China |
| Industry | Typical Equipment |
|---|---|
| Heavy Vehicle Manufacturing | Transmission Systems, Steering Mechanisms, Axle Assemblies |
| Commercial Transportation | Bus Chassis, Truck Drivetrains, Construction Vehicle Suspensions |
Heavy vehicle operators know the frustration of unexpected downtime—especially when caused by bearing failure in critical components like transmissions or axles. Sourcing reliable replacements often means coordinating with multiple suppliers, verifying quality across different brands, and waiting weeks for delivery. These delays not only increase maintenance costs but also disrupt project schedules and revenue streams.
Our 3318-a Large Size Double Row Angular Contact Ball Bearing addresses these challenges directly. As an officially authorized distributor, we guarantee 100% authentic SKF products with P4 precision rating—ideal for heavy vehicle equipment requiring high load capacity and rotational accuracy. With sufficient ready stock of P4 precision grade bearings, we ensure rapid delivery to minimize your equipment downtime, whether for scheduled maintenance or emergency repairs.
This double row angular contact ball bearing excels in heavy vehicle applications where combined radial and axial loads are present. Its separated design allows for easy mounting and dismounting, a critical feature during field maintenance. The bearing’s robust construction—using high-grade bearing steel—ensures durability under the harsh operating conditions typical of construction, mining, and commercial transportation vehicles, including vibration, shock loads, and temperature variations.
The P4 precision rating of this bearing guarantees tight tolerances for runout and dimensional accuracy, reducing vibration and noise in vehicle drivetrains. Its double row structure provides higher radial load capacity compared to single row designs, making it suitable for heavy-duty axles and gearboxes. Available with steel, copper, or nylon cages, the bearing can be tailored to specific lubrication requirements and operating speeds, ensuring optimal performance in diverse vehicle applications. The oil grease lubrication option balances friction reduction with contamination resistance, extending service life in dusty or wet environments.
Choosing genuine SKF bearings over counterfeit alternatives delivers clear long-term value. Counterfeit bearings often fail prematurely due to substandard materials and manufacturing processes, leading to costly secondary damage to gears, shafts, and housings. In contrast, our bearings undergo standardized precision testing procedures with full-process quality traceability, compliant with ISO 9001 and DIN standards. This commitment to quality reduces the total cost of ownership by minimizing unplanned maintenance, extending service intervals, and protecting your equipment investment.
Our position as a trusted partner to 800+ clients across 45+ countries stems from our unwavering focus on engineering excellence and customer support. We provide official brand authorization documentation for every bearing, ensuring full traceability from manufacturing to delivery. Our senior application engineering team—with extensive on-site project experience—offers personalized support for bearing selection and working condition matching, helping you avoid costly选型 mistakes. Additionally, our professional shockproof and dustproof logistics solutions preserve bearing accuracy during transportation, ensuring your 3318-a bearing arrives in optimal condition, ready for immediate installation.
Don’t let equipment downtime impact your operations. Whether you need a single replacement bearing or a stock of spares for your fleet, our ready-to-ship inventory ensures you get the parts you need when you need them. Send us your requirements now, and our team will provide a detailed quotation within one working day, complete with technical verification and certification documentation.
Q: Are these 3318-a bearings genuine SKF products?
A: Yes, we are an officially authorized SKF distributor, and every bearing comes with full authorization certificates to ensure traceability to the original manufacturer.
Q: How can I confirm if this bearing fits my specific heavy vehicle model?
A: Provide your vehicle make, model, and application details (e.g., transmission, axle) to our engineering team, who will verify compatibility and provide technical guidance at no cost.
Q: What is the warranty policy for this bearing?
A: All bearings are covered by the original manufacturer's warranty, with manufacturing defects eligible for unconditional replacement.
Q: What is the minimum order quantity for the 3318-a bearing?
A: We accept orders starting from 1 piece, making it easy to source both emergency repairs and regular maintenance stock.
Q: How long will it take to receive my order?
A: In-stock bearings are typically shipped within 3-7 business days, with express shipping options available for urgent requirements.
Q: How can I verify the authenticity of the bearing upon delivery?
A: Each bearing includes SKF's original packaging with security features. We also provide certification documents and can assist with verification through SKF's official channels if needed.
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