Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | NN 3056 K/SPw33 |
| Precision Rating | SP, up, SP and up |
| Bearing Type | Roller |
| Number of Row | Double Row |
| Inner Diameter | 280 mm |
| Structure | Cylindrical |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Selling Units | Single Item |
| Package Size Per | 10X10X10cm Batch |
| Gross Weight Per | 0.100 kg Batch |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Wind Power | Wind power generators |
NN 3056 K/SPw33 Bearing: Solving Wind Power Generator Precision Challenges
Wind power generator operators often face critical issues with bearing precision—excessive vibration from misaligned components, premature wear due to substandard manufacturing, and difficulty sourcing exact replacements for specialized double row cylindrical roller bearings. These problems lead to unplanned downtime and increased maintenance costs, especially when dealing with hard-to-find SP precision ratings.
Engineered for Wind Power’s Demanding Conditions
The NN 3056 K/SPw33 double row cylindrical roller bearing addresses these challenges with its SP precision rating, ensuring minimal runout and optimal load distribution in wind turbine gearboxes and generators. As part of our comprehensive SKF cylindrical roller bearing range, this product benefits from our ISO 9001-certified inspection processes and direct access to a vast inventory of conventional and hard-to-find models, supporting same-day shipping for urgent wind power maintenance needs.
Key Performance in High-Load Rotational Systems
This bearing excels in applications with high radial loads and moderate axial displacement, common in wind power generator main shafts and gearbox stages. Its double row design provides increased rigidity and load-carrying capacity compared to single row alternatives, while the open structure allows for effective lubrication circulation—critical for operating temperatures typically ranging from -30°C to +120°C in wind turbine nacelles.
Precision Engineering Details That Impact Reliability
The SP precision class of the NN 3056 K/SPw33 ensures tight control over dimensional tolerances, with bore and outer diameter accuracies that minimize shaft-housing misalignment effects. The cylindrical roller design distributes loads evenly across the raceways, reducing stress concentrations and extending fatigue life. The “K” designation indicates a tapered bore, facilitating easy mounting and dismounting—a valuable feature during turbine maintenance shutdowns. Additionally, the bearing’s structure allows for thermal expansion compensation, a crucial factor in the temperature-varying environments of wind power installations.
Total Cost of Ownership: Beyond Initial Price
Choosing the correct double row cylindrical roller bearing directly impacts long-term operational costs. A precision-machined SKF NN 3056 K/SPw33 reduces vibration-induced component wear, lowering maintenance frequency and extending service intervals. In contrast, non-precision bearings may require replacement within 12–18 months, while properly selected SP precision bearings can operate for 5+ years in standard wind power conditions. This reliability translates to fewer turbine shutdowns, lower labor costs, and preserved energy production revenue.
Quality Assurance You Can Verify
Our NN 3056 K/SPw33 bearings undergo rigorous quality control, including raw material verification and dimensional inspection per ISO standards. Each unit comes with batch traceability documentation, and we provide a warranty against manufacturing defects. As a supplier with direct access to global distribution channels, we ensure genuine SKF products that meet the original equipment specifications for wind power generators. Our technical team can assist with installation guidance to maximize bearing performance and service life.
Packaging & Shipping
- Standard packaging: 10x10x10cm per batch
- Same-day shipping available for in-stock items
- Flexible delivery options: express courier, air freight, or sea freight
- Low minimum order quantity, supporting both maintenance and bulk procurement
Get Your NN 3056 K/SPw33 Bearing Quote Today
Whether you need a single replacement bearing or a bulk order for wind turbine production, provide your required quantity and delivery location, and we’ll confirm current stock availability and pricing. Our team can also assist with cross-referencing part numbers to ensure compatibility with your specific wind power generator model.
Frequently Asked Questions
Q: Do you supply bearings from other brands besides SKF?
A: Yes, we support procurement of bearings from all major international brands including NSK, NTN, Koyo, NACHI, IKO, FAG, and Timken, as well as domestic Chinese brands, based on customer specifications.
Q: How can I confirm if the NN 3056 K/SPw33 is compatible with my wind turbine?
A: Provide your equipment model or existing bearing dimensions (inner diameter, outer diameter, width), and our technical team will verify compatibility and provide installation recommendations.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. The specific warranty period and terms will be detailed in your purchase contract, typically covering 12 months from delivery for standard applications.
Q: What is the minimum order quantity for the NN 3056 K/SPw33?
A: We accept orders for single units, making us suitable for both emergency maintenance and large-scale projects.
Q: How quickly can you ship this bearing to Europe or North America?
A: In-stock items are shipped the same day. Standard delivery to most European and North American locations takes 7–15 days via our global logistics network.
Q: Can you provide custom packaging or labeling for this bearing?
A: Yes, we offer customized packaging and label printing services according to customer requirements, including barcoding and batch identification for inventory management.
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.
