Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
High Precision Double Row Cylindrical Roller Bearing Nn3007K Nn3008K Nn3009K P5 P4 W33
Achieve smoother, longer-lasting machinery performance with our high-precision Double Row Cylindrical Roller Bearing series. Designed to minimize vibration and extend equipment uptime, these bearings deliver consistent load distribution even in high-speed applications.
- Precision-graded P5/P4 tolerance ensures reliable operation in critical industrial environments
- W33 design feature enhances heat dissipation for extended service life under heavy loads
- Available in NN3007K, NN3008K, and NN3009K configurations to fit your specific machinery requirements
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Especificaciones del Producto
Parámetro
Detalles
Tipo de Rodamiento
Rodamiento de rodillos cilíndricos de doble fila Número de modelo
Clase de Precisión
P5, P4 Característica de diseño
Idoneidad de la Aplicación
Industria
Aplicaciones Típicas
Maquinaria Industrial
Metalurgia del Acero Automatización
Finding the right double row cylindrical roller bearings for high-precision applications can be challenging. Many buyers struggle with mismatched dimensions between different manufacturers, or receive bearings that fail prematurely due to poor material quality. Sourcing from multiple suppliers to compare options only adds time and complexity to your procurement process. Diseñado para un Rendimiento Consistente en Entornos Exigentes
Our double row cylindrical roller bearings (Nn3007K, Nn3008K, Nn3009K) are designed to address these common pain points. Produced under ISO 9001 certified processes, these bearings meet P4/P5 precision standards to ensure interchangeability with major international dimensions. With a comprehensive inventory of both our own brand and leading global brands, we can fulfill your requirements quickly—whether you need a single unit or bulk order for critical machinery like steel rolling mills or automated production lines. These bearings excel in applications requiring high radial load capacity and rigidity. The double row design distributes loads evenly across rolling elements, making them ideal for heavy-duty gearboxes and machine tool spindles operating at moderate to high speeds. The W33 oil groove and hole configuration allows for efficient lubrication circulation, critical in continuous operation scenarios where maintenance intervals are extended. Características clave de ingeniería que impactan en el rendimiento
Precision class directly affects operational stability: P5 grade bearings maintain tighter tolerances for runout and dimension control, reducing vibration in high-speed applications. The K-type tapered bore design simplifies mounting on stepped shafts, ensuring proper alignment and load distribution. Raw material selection includes high-carbon chromium steel with uniform hardness (typically HRC 58-62) to resist wear and fatigue under cyclic loading. Each bearing undergoes dimensional inspection post-assembly to verify bore diameter, outer diameter, and width meet specified tolerances. Por qué los rodamientos de precisión reducen el costo total de propiedad
Choosing the right cylindrical roller bearing impacts more than initial purchase price. A bearing with insufficient precision can cause excessive shaft wear, leading to premature equipment failure and unplanned downtime. Our P4/P5 grade bearings minimize vibration-induced stress on adjacent components, extending the service life of gearboxes and spindles. While cheaper alternatives may save money upfront, they often require more frequent replacement—doubling maintenance labor costs and production losses over time. Aseguramiento de Calidad Que Puedes Verificar
Every bearing in our inventory undergoes multi-stage quality checks: raw material certificates confirm chemical composition and mechanical properties, while finished products are tested for dimensional accuracy, surface finish, and hardness. We provide a warranty against manufacturing defects, with clear procedures for replacement or refund if issues arise. Our procurement network includes established relationships with global and domestic manufacturers, allowing us to source to your exact specifications—whether you require specific brand equivalent dimensions or custom packaging. Embalaje industrial estándar con recubrimiento de grasa protectora
Envío el mismo día para artículos en stock
Obtenga su cotización de rodamientos hoy
Whether you need Nn3007K, Nn3008K, Nn3009K, or other cylindrical roller bearing models, provide your required dimensions, precision class, and quantity. Our team will confirm stock availability and deliver a competitive quote within 24 hours. Early order confirmation ensures priority handling and faster delivery to keep your production on schedule. Preguntas Frecuentes
Q: ¿Suministran rodamientos de otras marcas además de la suya propia?
A: Yes, we offer a full range of international and domestic brands. Specify your preferred brand, and we can source equivalent models that meet your technical requirements. P: ¿Cómo puedo confirmar si estos rodamientos se ajustarán a mi equipo?
A: Provide your existing bearing part number or critical dimensions (bore diameter, outer diameter, width), and our technical team will cross-verify compatibility with standard specifications. P: ¿Cuál es su política de garantía para estos rodamientos? A: We provide a warranty covering manufacturing defects. The specific term is detailed in each order confirmation, and valid returns require original packaging and defect documentation. Q: What is the minimum order quantity for these precision bearings? A: We accept small orders for trial purposes. Contact us with your requirements, and we’ll confirm the minimum quantity available for your specific model. P: ¿Qué tan rápido pueden enviar después de realizar el pedido?
A: In-stock bearings ship the same business day when orders are confirmed before 12:00 GMT. For non-stock items, lead times vary by manufacturer and will be specified in your quote. Q: Do you offer custom bearing solutions if standard models don’t meet my needs? A: Yes, we support OEM/ODM customization. Provide your detailed drawings or performance requirements, and we’ll work with our manufacturing partners to develop a solution. Ready to order or need a quote?
Nn3007K, Nn3008K, Nn3009K
W33 (Oil Groove and Holes)
Machine tool spindles, gearboxes, rolling mills
Continuous casting machines, rolling equipment
Heavy-duty conveyor systems, robotic arms
Need Reliable Nn3007K-Nn3009K Double Row Cylindrical Roller Bearings? Here’s What Matters
Optimal Performance in High-Rigidity Applications
Packaging & Shipping
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us via email or our online form for prompt assistance.
Product Summary
- Product Name
- High Precision Double Row Cylindrical Roller Bearing Nn3007K Nn3008K Nn3009K P5 P4 W33
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Cylindrical Roller Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
High Precision Double Row Cylindrical Roller Bearing Nn3007K Nn3008K Nn3009K P5 P4 W33
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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