Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | NNU4934BK/SPW33 |
| Bearing Type | Cylindrical Roller Bearing |
| Number of Row | Single Row |
| Bore Diameter (d) | 170 mm |
| Structure | Cylindrical |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Gross Weight Per | 0.250 Kg Batch |
| Selling Units | Single Item |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Rotary equipment shafts, precision machine tool spindles, heavy-duty gearboxes |
| Steel Mills | Rolling mill stands, conveyor systems |
| Construction Machinery | Hydraulic pump drives, crane slewing mechanisms |
Need High Precision SKF NNU4934BK/SPW33 Cylindrical Roller Bearing for Industrial Machinery?
Many industrial buyers face challenges finding reliable bearings that meet exact dimensional requirements, especially when dealing with specialized machinery. Mismatched tolerances or substandard materials often lead to premature wear, increased downtime, and costly replacements. Sourcing from multiple suppliers for different brands further complicates the procurement process.
Engineered for Consistent Performance in Demanding Environments
The SKF NNU4934BK/SPW33 cylindrical roller bearing addresses these issues with its precision manufacturing and robust design. As part of our comprehensive bearing range, this product benefits from our ISO 9001 certified quality control processes, ensuring each unit meets strict dimensional and material standards. With access to a wide inventory of industrial bearings, including the full SKF product line, we support same-day shipping for in-stock items, reducing lead times for critical maintenance needs.
Optimized for High-Load, High-Speed Industrial Applications
This cylindrical roller bearing is specifically designed to handle radial loads in high-speed rotating equipment common in steel mills, construction machinery, and precision industrial settings. Its open structure allows for effective lubrication management, while the single-row configuration provides optimal load distribution across the bearing surface. The 170 mm inner diameter makes it suitable for medium to large-scale machinery where shaft stability and precision are critical.
Key Engineering Features for Reliable Operation
The NNU4934BK/SPW33 model incorporates several critical design elements that enhance performance. The cylindrical structure ensures uniform load distribution, reducing stress concentrations that can cause early failure. The open seal type allows for custom lubrication solutions, adapting to specific operating conditions such as high temperatures or contamination risks. SKF’s precision manufacturing ensures tight dimensional tolerances, critical for interchangeability in multi-bearing assemblies where alignment is essential. Each unit undergoes rigorous testing to verify hardness and surface finish, ensuring compatibility with original equipment specifications.
Total Cost of Ownership: Why Quality Matters
Choosing the right bearing directly impacts operational costs. Inferior bearings with imprecise dimensions or substandard materials may initially cost less but often result in increased maintenance, unplanned downtime, and potential damage to adjacent components. The SKF NNU4934BK/SPW33 cylindrical roller bearing, with its high precision and durable construction, minimizes these risks. By adhering to international quality standards, this bearing contributes to longer equipment life cycles and more predictable maintenance schedules, ultimately reducing the total cost of ownership compared to lower-quality alternatives.
Quality Assurance You Can Trust
Our commitment to quality starts with stringent supplier selection and extends through every stage of the procurement process. All bearings undergo thorough inspection, including dimensional verification and material testing, to ensure compliance with industry standards. We provide comprehensive documentation, including batch inspection reports, to support traceability. Our products are backed by a warranty against manufacturing defects, with clear procedures for returns and replacements. With access to both global brands and domestic manufacturers, we can fulfill diverse customer requirements while maintaining consistent quality control.
Packaging & Shipping
- Standard packaging: 30.00cm × 25.00cm × 25.00cm carton
- Package gross weight: 0.300kg per unit
- Shipping options: Express, air freight, or sea freight based on order size and destination
- Minimum order quantity: Available for single item purchase, with volume discounts for larger orders
Get a Quote for SKF NNU4934BK/SPW33 Bearing
Whether you need a single replacement bearing or a bulk order for your production line, we can provide competitive pricing and reliable delivery. Contact us with your specific requirements, including quantity and delivery location, and our technical team will assist with product verification and order processing. Early inquiry ensures priority handling and faster fulfillment.
Frequently Asked Questions
Q: Do you supply bearings from other brands besides SKF?
A: Yes, we offer a comprehensive range of bearings including international brands like NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic Chinese brands, as well as custom-manufactured options.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or the required bearing dimensions (inner diameter, outer diameter, width), and our technical team will cross-verify with manufacturer specifications to ensure compatibility.
Q: What is your warranty policy for bearings?
A: We provide a warranty against manufacturing defects. Specific terms depend on the product and application, with details outlined in the sales contract. Defective products can be returned for replacement or refund per warranty conditions.
Q: What is the minimum order quantity?
A: We accept orders for single items, making it convenient for maintenance and repair needs. Larger quantities are eligible for volume pricing discounts.
Q: How long does shipping take?
A: In-stock items ship the same day. Delivery time depends on the destination: typically 3-7 days for express, 5-10 days for air freight, and 20-40 days for sea freight.
Q: Can you provide custom bearings according to specific requirements?
A: Yes, we support OEM/ODM customization for non-standard bearings. Provide detailed drawings or specifications, and our engineering team will evaluate feasibility and provide a quote.
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.







