Product Specifications
| Parameter |
Details |
| Model NO. |
NN3017KTN9/SPVR521 |
| Type |
Roller |
| Number of Row |
Double Row |
| Inner Diameter |
85 mm |
| Selling Units |
Single Item |
| Package Size Per |
10X10X10cm Batch |
| Structure |
Cylindrical |
| Seals Type |
Open |
| Gross Weight Per |
0.250 kg Batch |
| Trademark |
SKF |
| Origin |
China |
Application Industries
| Industry |
Typical Equipment |
| Machine Tools |
CNC Spindles, Lathes, Milling Machines |
| Industrial Machinery |
Gearboxes, Electric Motors, Pumps |
| Steel & Metallurgy |
Rolling Mill Equipment, Conveyors |
| Construction Machinery |
Crushers, Mixers, Material Handling Systems |
Stop Equipment Downtime with Genuine NN3017KTN9/SPVR521 Double Row Cylindrical Roller Bearing
When a bearing fails unexpectedly, the costs add up quickly—lost production hours, emergency repair fees, and unplanned downtime that disrupts entire operations. Many industrial buyers face the challenge of sourcing reliable bearings for critical machinery, especially when dealing with multiple suppliers who offer inconsistent quality and long lead times. For equipment like CNC spindles and gearboxes, choosing the wrong bearing can mean premature failure and increased maintenance cycles.
Genuine SKF Bearings, In Stock and Ready for Immediate Shipment
The NN3017KTN9/SPVR521 Double Row Cylindrical Roller Bearing is designed to address these pain points. As an official SKF distributor, we ensure every unit is genuine and traceable, eliminating the risk of counterfeit products that compromise performance. With our large centralized inventory, this 85mm inner diameter bearing is available for immediate dispatch, supporting both scheduled maintenance and emergency repairs. Whether your application involves high-speed rotation in machine tools or heavy loads in industrial gearboxes, this bearing delivers consistent performance you can rely on.
Engineered for High-Performance Industrial Applications
This Double Row Cylindrical Roller Bearing excels in applications requiring high radial load capacity and precise axial alignment. Its open design allows for optimal lubrication in environments where heat dissipation is critical, making it suitable for continuous operation in steel mills, manufacturing plants, and construction equipment. The double row configuration provides enhanced rigidity, reducing vibration and extending service life in heavy-duty machinery such as crushers and conveyors. When operating under variable loads or at moderate speeds, this bearing maintains stability, ensuring your equipment runs smoothly with minimal downtime.
Key Technical Features That Impact Performance
The NN3017KTN9/SPVR521’s design incorporates several critical features that directly influence its performance. The cylindrical roller structure distributes radial loads evenly across the raceways, maximizing load-bearing capacity and minimizing stress concentrations. The double row arrangement increases rigidity, which is essential for precision applications like CNC machine spindles where alignment errors can affect product quality. The open seal type allows for easy maintenance and re-lubrication, a key advantage in dusty industrial environments where contamination can shorten bearing life. Additionally, the 85mm inner diameter ensures compatibility with standard shafts in mid-sized industrial equipment, simplifying replacement and reducing installation time.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Choosing genuine SKF bearings over counterfeit alternatives delivers long-term value by lowering total cost of ownership. Counterfeit bearings often fail prematurely due to substandard materials and poor manufacturing tolerances, leading to unplanned downtime and costly repairs. In contrast, this NN3017KTN9/SPVR521 bearing meets SKF’s strict quality standards, ensuring reliable performance and extended service intervals. For example, in a steel mill conveyor system, a genuine bearing might last 3–5 years, while a counterfeit could fail in 6–12 months—resulting in repeated replacement costs and production losses. By investing in authentic bearings, you avoid hidden expenses and ensure consistent equipment performance.
Why Global Buyers Choose Our Bearing Solutions
As an official authorized distributor of SKF and Timken, we bring dual-brand expertise to industrial procurement. Our ISO 9001 quality inspection system ensures every bearing meets统一 standards, with incoming and outgoing checks to verify authenticity and performance. With 1,200+ clients across 55+ countries, we have the experience to support diverse applications, from mining operations in Australia to manufacturing plants in Brazil. Our cross-brand technical team provides free选型 assistance, helping you match the right bearing to your equipment and operating conditions. We offer one-stop mixed procurement, allowing you to source multiple brands and part numbers through a single supplier, reducing administrative overhead and simplifying logistics.
Packaging & Shipping
- Original SKF packaging with individual box protection and batch traceability labels
- 现货 available for dispatch within 3–7 working days
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking number provided upon shipment
- Minimum order quantity of 1 unit, ideal for emergency repairs and small-batch requirements
Secure Your Bearing Supply Today
Don’t let equipment downtime affect your bottom line. The NN3017KTN9/SPVR521 Double Row Cylindrical Roller Bearing is in stock and ready to ship, ensuring you can resume operations quickly. Whether you need a single unit for emergency repair or multiple bearings for scheduled maintenance, our streamlined ordering process ensures fast delivery and reliable support.
Frequently Asked Questions
Q: Is this bearing a genuine SKF product?
A: Yes, we are an official SKF authorized distributor. Every bearing is sourced directly from SKF and comes with full traceability documentation to verify authenticity.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model, shaft diameter, and operating conditions (load, speed, temperature), and our technical team will verify compatibility at no cost.
Q: What is the warranty policy for this bearing?
A: The bearing is covered by SKF’s standard manufacturer warranty, which includes replacement for any manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making it easy to source emergency replacement parts.
Q: How long does shipping take to my location?
A:现货 items ship within 3–7 working days. Transit time depends on your location: typically 3–5 days for express courier, 10–15 days for air freight, and 30–45 days for sea freight.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check the SKF packaging for holographic labels, scan the QR code for online verification, and cross-reference the batch number with the provided traceability document.
Ready to order or need a quote?
Send your bearing designation (NN3017KTN9/SPVR521), application details, and quantity — we’ll respond within 24 hours.
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