Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33 with Brass Cage for Industrial Machinery
<p>Ensure uninterrupted industrial machinery performance with the <strong>Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33</strong>—engineered to deliver exceptional radial load capacity and precise alignment for critical operations. Its brass cage design reduces friction and heat buildup, extending service life in high-torque applications like steel mills and construction equipment.</p><ul><li>C3 clearance provides optimal thermal expansion allowance, preventing seizure during temperature fluctuations</li><li>Separated inner/outer rings enable easy mounting and dismounting, minimizing downtime during maintenance</li><li>60-64 HRC hardness ensures superior wear resistance, maintaining accuracy even under heavy loads</li></ul><p>Backed by SKF's global quality assurance and our direct supply chain, this bearing delivers the reliability that keeps your production line running smoothly, day in and day out.</p>
- 100% genuine -- COC & factory certificates available
- In-stock · bulk & small-batch orders accepted
- ISO · DIN · ABMA · JIS compliant
- Full customs clearance documentation provided
Product Details
Full Specifications & Description
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Alignment | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separability | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage Material | Brass, Steel |
| Vibration Level | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Origin | Jiangsu China |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Heavy-duty gearboxes, rolling mills, large electric motors |
| Steel Mills | Continuous casting machines, rolling stands |
| Mining Equipment | Crushers, conveyor systems, heavy-duty pumps |
Finding the Right NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing for Your Machinery?
Selecting the correct double row cylindrical roller bearing can be challenging when faced with inconsistent quality from suppliers or unclear technical specifications. Many industrial operations experience unexpected downtime due to bearings that fail prematurely—often the result of incorrect clearance, substandard cage materials, or imprecise manufacturing tolerances.
Engineered for Reliable Performance in Industrial Machinery
The NNU4920 B/Sp C3 W33 double row cylindrical roller bearing with brass cage addresses these challenges through its robust design and adherence to international standards. With interchangeable dimensions compatible with major bearing specifications, this bearing fits seamlessly into existing industrial machinery setups. Our extensive inventory ensures quick availability, while our ISO 9001 certified quality control processes verify material integrity and dimensional accuracy.
Optimal Performance in Heavy-Duty Applications
This double row cylindrical roller bearing excels in high-load environments where axial and radial forces act simultaneously. Its separated inner and outer rings allow for easy mounting and dismounting, making it ideal for large equipment maintenance. Operating within a temperature range suitable for industrial machinery, the bearing maintains performance in steel mills, mining operations, and heavy manufacturing facilities.
Critical Engineering Features Explained
The C3 clearance specification provides essential internal space for thermal expansion during operation, preventing premature failure in high-temperature applications. The brass cage offers superior strength and heat resistance compared to plastic alternatives, ensuring stable roller guidance even under heavy loads. With a hardness rating of 60-64 HRC, the bearing steel components deliver excellent wear resistance, while the Z1V1 to Z3V3 vibration levels allow selection based on precision requirements—from general industrial use to high-speed applications.
Total Cost of Ownership: Why Quality Matters
Choosing a precision-engineered double row cylindrical roller bearing like the NNU4920 B/Sp C3 W33 reduces long-term costs by minimizing unplanned downtime and maintenance. Inferior bearings often exhibit early wear due to improper material hardness or imprecise rolling elements, leading to equipment vibration, noise, and potential damage to adjacent components. By investing in bearings that meet strict quality standards, industrial operators lower replacement frequency and extend machinery service life.
Quality Assurance You Can Trust
Our manufacturing and testing processes adhere to ISO 9001 standards, ensuring consistent quality from raw material inspection through final product testing. Each bearing undergoes dimensional verification, hardness testing, and surface finish inspection before shipment. We provide a warranty against manufacturing defects and offer flexible procurement options, including custom packaging and labeling to meet specific industrial requirements.
Packaging & Shipping
- Packaged in cartons with pallet options for bulk orders
- Available from stock for prompt delivery
- Multiple shipping methods including express courier, air, and sea freight
- Low minimum order quantity supported for both trial and regular purchases
Get Your NNU4920 B/Sp C3 W33 Bearing Quote Today
Whether you need a single replacement bearing or bulk quantities for production, we can provide competitive pricing and reliable delivery. Share your required specifications—including quantity, delivery location, and any special packaging needs—and our team will prepare a tailored quote to meet your industrial machinery requirements.
Frequently Asked Questions
Q: Do you supply other brands or models of cylindrical roller bearings?
A: Yes, we support procurement of all major bearing brands and models. We can source bearings according to your specific brand or dimensional requirements.
Q: How can I confirm this bearing fits my equipment?
A: Provide your equipment model or existing bearing dimensions (bore, outer diameter, width), and our technical team will verify compatibility with the NNU4920 B/Sp C3 W33 specification.
Q: What is your warranty policy for this bearing?
A: We offer a warranty against manufacturing defects. Specific terms are detailed in our sales agreement, with coverage for replacement or refund in case of quality issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including single-unit purchases, to support both maintenance needs and production requirements.
Q: How long does shipping take for the NNU4920 B/Sp C3 W33 bearing?
A: Stock items ship within 1-2 business days. Delivery time depends on your location, with express options available for urgent requirements.
Q: Can you provide custom bearing solutions beyond standard models?
A: Yes, we support OEM/ODM customization based on technical drawings or specific performance requirements for unique industrial applications.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we'll get back to you with pricing and lead time.
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Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33 with Brass Cage for Industrial Machinery
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