Product Specifications
| Parameter |
Details |
| Model NO. |
NNU4920B/SPW33 |
| Type |
Roller |
| Number of Row |
Double Row |
| Structure |
Cylindrical |
| Inner Diameter |
100 mm |
| Seals Type |
Open |
| Trademark |
SKF |
| Origin |
China |
| Single Gross Weight |
0.250 kg |
| Single Package Size |
10×10×10 cm |
| Package Size |
16.00×16.00×16.00 cm |
| Package Gross Weight |
0.300 kg |
| Selling Units |
Single Item |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Gearboxes, Reducers |
| Manufacturing |
CNC Machines, Spindles, Printing Equipment |
| Automotive |
Transmission Systems, Electric Motors |
| New Energy |
Wind Turbine Gearboxes, Solar Tracking Systems |
Minimize Downtime with High Precision Double Row Cylindrical Roller Bearing NNU4920B/SPW33
Industrial machinery operators know the cost of sudden bearing failure—unplanned downtime, production delays, and expensive repairs. When critical equipment like machine tool spindles or gearboxes fail due to substandard bearings, the losses add up quickly. Finding reliable suppliers who can deliver precision components with consistent quality and flexible order terms remains a persistent challenge in the industry.
Genuine NNU4920B/SPW33 Bearings for Reliable Performance
Our High Precision Double Row Cylindrical Roller Bearing NNU4920B/SPW33 addresses these pain points directly. As a professional bearing manufacturer and supplier with over 18 years of export experience, we ensure each bearing meets strict quality standards. This double row cylindrical roller bearing is engineered for high-precision industrial applications, providing the stability and durability needed for continuous operation in machine tools, gearboxes, and manufacturing equipment.
Optimized for Heavy-Duty Industrial Conditions
This NNU4920B/SPW33 bearing excels in applications requiring high radial load capacity and precise axial alignment. Its double row design distributes load evenly, making it ideal for heavy-duty machinery operating at moderate to high speeds. Whether used in CNC machine spindles or industrial gearboxes, the open structure allows for easy lubrication maintenance, ensuring consistent performance even in demanding workshop environments.
Technical Features That Deliver Consistent Results
The NNU4920B/SPW33’s cylindrical roller structure provides superior radial load handling compared to ball bearings, making it suitable for equipment subject to heavy mechanical stress. With an inner diameter of 100 mm, it fits standard industrial shafts commonly found in machine tools and reducers. The precision manufacturing ensures minimal vibration during operation, which is critical for maintaining workpiece accuracy in machining applications. The bearing’s robust construction using high-grade materials supports long service life, reducing the frequency of replacements and associated downtime.
Why Authenticity Matters for Your Bottom Line
Choosing genuine double row cylindrical roller bearings over counterfeit alternatives directly impacts your total cost of ownership. Fake bearings often fail prematurely due to poor material quality and imprecise manufacturing, leading to unexpected equipment breakdowns. The resulting production losses, repair costs, and potential damage to other components far exceed the initial savings from cheaper alternatives. Our bearings meet international standards, ensuring reliable performance and predictable maintenance schedules that help keep your operations running smoothly.
Our Commitment to Quality and Service
With ISO 9001:2015 and ISO 14001 certifications, we maintain rigorous quality control throughout production and supply. Our professional technical team provides free guidance on bearing selection and installation, helping you avoid costly选型 mistakes. We offer flexible order policies, including 1 piece MOQ for standard bearings and sample orders without minimum quantity requirements. For distributors and wholesalers, free samples are available (with freight cost covered by the customer). Our efficient delivery ensures sample orders ship within 3-5 working days and bulk orders within 5-15 working days, minimizing your inventory holding costs.
Packaging & Shipping
- Protective packaging: Each bearing is packed in a 10×10×10 cm single package, with outer carton dimensions of 16×16×16 cm
- Fast delivery: Sample orders ship within 3-5 working days, bulk orders within 5-15 working days
- Multiple logistics options: DHL, FedEx, UPS, air freight, and sea freight available
- Order tracking: Real-time logistics information provided once shipped
- Flexible ordering: 1 piece MOQ for standard bearings, customized order quantities negotiable
Get Your NNU4920B/SPW33 Bearing Today
Don’t let equipment downtime affect your productivity. Whether you need a single replacement bearing or bulk order for maintenance stock, we can fulfill your requirements quickly. Send us your bearing designation, application details, and quantity to receive a prompt quote and ensure your machinery stays operational.
Frequently Asked Questions
Q: Is this a genuine SKF bearing?
A: Yes, we supply genuine original brand bearings, including SKF, NSK, and INA. Each product can be traced through our authorized supply chain.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model or specific technical requirements, and our professional technical team will assist with free选型 confirmation.
Q: What is the warranty policy?
A: We offer an official 12-month warranty from the date customers receive goods. Qualified defective products are eligible for free replacement or refund.
Q: What is the minimum order quantity?
A: For standard bearings like the NNU4920B/SPW33, the MOQ is 1 piece, supporting emergency repair needs and small-batch purchases.
Q: How long does shipping take?
A: Sample orders are delivered within 3-5 working days, while bulk orders typically ship within 5-15 working days. Multiple logistics options are available to meet your timeline requirements.
Q: How can I verify the authenticity of the bearing?
A: Genuine bearings feature proper branding, packaging, and documentation. We provide complete traceability records and can assist with verification through official channels if needed.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
