Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | NNU4934BK/SPW33 |
| Type | Cylindrical Roller |
| Number of Row | Single Row |
| Inner Diameter | 170 mm |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Selling Units | Single Item |
| Gross Weight Per | 0.250 Kg Batch |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC Machine Tools, Gearboxes, Electric Motors |
| Automation | Conveyor Systems, Robotic Arms, Precision Actuators |
| Special Machinery | Printing Presses, Injection Molding Machines |
| Industrial Maintenance | Factory Upgrading Projects, Equipment Overhaul |
Minimize Downtime with High Precision SKF NNU4934BK/SPW33 Cylindrical Roller Bearings
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When production lines halt due to premature bearing wear or misalignment, every minute lost translates to revenue losses and missed deadlines. Sourcing reliable replacements often means coordinating with multiple suppliers, each with varying lead times and quality standards—complicating maintenance schedules and increasing operational risks.
Genuine SKF Bearings, Stocked and Ready for Immediate Dispatch
As an official SKF distributor with a real-time WMS inventory system, we eliminate these challenges by offering the SKF NNU4934BK/SPW33 cylindrical roller bearing with immediate availability. This high precision bearing is engineered for industrial machinery applications where accuracy and durability are critical, such as CNC machine spindles and conveyor system gearboxes. Our ISO 9001 three-level quality inspection ensures each unit meets SKF’s stringent standards before shipping, providing the reliability your equipment demands.
Engineered for High-Precision Industrial Environments
The SKF NNU4934BK/SPW33 cylindrical roller bearing excels in applications requiring radial load capacity and precise rotational performance. Its single-row design and open structure make it ideal for high-speed operations where heat dissipation and minimal friction are essential. Whether installed in automation systems, special equipment factories, or factory upgrading projects, this bearing delivers consistent performance under the demanding conditions of modern industrial environments.
Key Technical Features That Drive Performance
The NNU4934BK/SPW33’s 170 mm inner diameter supports robust shaft configurations, while its cylindrical roller design ensures efficient load distribution across the raceway—extending service life even under continuous operation. The open seal type allows for easy lubrication maintenance, critical for applications where regular servicing is required. As a genuine SKF product, it integrates seamlessly with original equipment specifications, reducing the risk of compatibility issues that can compromise machinery performance.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Choosing authentic SKF bearings over counterfeit alternatives directly impacts your bottom line. Counterfeit bearings often fail prematurely due to substandard materials and manufacturing processes, leading to unplanned downtime, costly repairs, and potential damage to adjacent components. In contrast, the SKF NNU4934BK/SPW33’s precision engineering minimizes wear, reduces energy consumption, and extends maintenance intervals—lowering long-term operational costs. Our full after-sales and claim support further ensures peace of mind, with clear accountability for product performance.
Your Trusted Partner for Industrial Bearing Solutions
With over 10 years of technical expertise and service to 2,000+ clients across 60+ countries, we stand behind every bearing we supply. As an official SKF distributor, our supply chain is fully traceable, with complete authorization documentation provided for every order. Our technical team offers personalized application consulting, helping you select the right bearing for your specific machinery and operating conditions. We manage full-project supply needs, from single-unit emergency replacements to bulk orders, with global door-to-door logistics ensuring on-time delivery wherever your operations are located.
Packaging & Shipping
- Original SKF packaging with product identification and batch traceability
- Consolidated packaging available for multi-item orders to reduce shipping costs
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time shipment tracking provided from warehouse dispatch to delivery
- Minimum order quantity of 1 unit, supporting both maintenance and project requirements
Secure Your Bearing Supply Today
Don’t let equipment downtime disrupt your production schedule. The SKF NNU4934BK/SPW33 cylindrical roller bearing is in stock and ready to ship—ensuring you can resume operations quickly. Send us your order details, including quantity and application requirements, and our team will provide a comprehensive quote within one working day.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official authorized SKF distributor. Every bearing comes with complete traceability documentation to verify authenticity, including manufacturer certificates and batch information.
Q: How can I confirm this bearing fits my equipment?
A: Provide your equipment model or technical specifications (load, speed, operating conditions), and our technical team will verify compatibility with the SKF NNU4934BK/SPW33 at no cost.
Q: What is the warranty policy?
A: All SKF bearings are covered by the manufacturer’s standard warranty, which includes replacement for manufacturing defects. Our after-sales team handles claims directly with SKF for efficient resolution.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making it easy to source emergency replacements for maintenance needs or small-batch requirements for project testing.
Q: How long does shipping take?
A: In-stock bearings are typically dispatched within 3-7 working days. Delivery time depends on your location, with express options available for urgent orders.
Q: How do I verify bearing authenticity upon receipt?
A: Check the packaging for SKF’s official holographic labels and verify the batch number via SKF’s online authentication system. We also provide a copy of our distributor authorization for your records.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.







