Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
High Precision NN3017 NN3018 NN3019 Cylindrical Roller Bearing P5 P4 W33
Experience smoother, more reliable machinery performance with our High Precision Cylindrical Roller Bearing, designed to minimize downtime and maximize operational efficiency. This robust bearing line—including NN3017, NN3018, and NN3019 models—delivers exceptional load capacity and precision (P5/P4 class) for high-speed applications.
- W33 lubrication groove design ensures consistent maintenance and extended service life, even in demanding industrial environments
- Engineered to reduce vibration and noise, enhancing both equipment longevity and workplace comfort
- Precision-machined rollers and raceways guarantee tight tolerance control, critical for maintaining alignment in heavy-duty systems
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
Product Specifications
| Parameter | Details |
|---|
Application Suitability
| Industry | Typical Applications |
|---|
Need High Precision Cylindrical Roller Bearings NN3017 NN3018 NN3019? Here’s What Matters
Searching for the right cylindrical roller bearings can feel like navigating a maze of sizes and standards. Many buyers face costly delays when dimensions don’t match or precision grades fall short of machinery requirements. Worse, settling for subpar bearings often leads to premature wear, unexpected downtime, and increased maintenance costs.
Built for Reliable, Long-Term Performance
Our cylindrical roller bearings NN3017, NN3018, and NN3019 address these challenges directly. Manufactured under ISO 9001-certified processes, these bearings meet P5 and P4 precision classes to ensure consistent performance in demanding applications. With a comprehensive range of international and domestic brands available, we simplify sourcing by offering one-stop access to the exact specifications you need—whether for replacement or new builds.
Where This Bearing Performs Best
Designed for high radial load capacities and moderate speeds, these cylindrical roller bearings excel in heavy-duty industrial settings. Common applications include gearboxes, machine tool spindles, and precision rotary tables where rigidity and accuracy are critical. Their W33 lubrication groove design facilitates relubrication, making them suitable for continuous-operation equipment like steel rolling mills and mining conveyors.
Engineering Details That Matter
Precision class directly impacts operational stability: P5 grade ensures tighter dimensional tolerances (±0.005mm for bore diameter) compared to standard bearings, reducing vibration in high-speed applications. The cylindrical roller design distributes load evenly across the raceway, enhancing dynamic load capacity (C) and extending service life. Surface hardness, typically 60-62 HRC, provides resistance to indentation and wear, while the separable inner ring simplifies mounting and dismounting during maintenance.
Why Bearing Selection Affects Total Cost
Choosing the right cylindrical roller bearing minimizes total cost of ownership. Inferior bearings with inadequate precision or material quality may save upfront but often fail early, causing production halts and costly repairs. Our bearings, tested for dimensional accuracy and surface finish, align with ISO 281 fatigue life standards, ensuring predictable performance and reducing unplanned downtime. Properly matched bearings also reduce energy consumption by minimizing friction, further lowering long-term operational expenses.
Quality You Can Rely On
Every bearing undergoes rigorous inspection, from raw material verification to final dimensional and hardness testing. Our ISO 9001-certified quality management system ensures consistency across production batches. We stand behind our products with a warranty against manufacturing defects, and our flexible sourcing network allows us to fulfill orders for both standard and hard-to-find models, ensuring you get the right bearings when you need them.
Packaging & Shipping
- Neutral packaging with protective wrapping to prevent damage during transit
- Stock availability for prompt dispatch on confirmed orders
- Multiple shipping options including express courier, air freight, and sea freight
- Low minimum order quantity to support both small repairs and large-scale projects
Request a Quote for NN3017 NN3018 NN3019 Bearings
Whether you need P4 or P5 precision, W33 lubrication groove, or specific brand equivalents, provide your required model, quantity, and delivery location. Our team will promptly confirm stock availability and provide a competitive quote, helping you keep your operations running smoothly.
Frequently Asked Questions
Q: Do you supply other bearing brands or models besides those listed?
A: Yes, we support inquiries for all bearing brands and models, including international and domestic options, and can source according to your specific requirements.
Q: How can I confirm if these bearings fit my equipment?
A: Provide your equipment’s bearing dimensions (bore, outer diameter, width) or original model number, and our technical team will verify compatibility.
Q: What is your warranty policy for these bearings?
A: We offer a warranty against manufacturing defects; specific terms are detailed in the sales contract.
Q: What is the minimum order quantity for these cylindrical roller bearings?
A: We accept low minimum order quantities, making it feasible for small-scale repairs or trial orders.
Q: How quickly can you ship after ordering?
A: In-stock items ship within 1-3 business days; shipping time depends on the selected logistics method (courier, air, or sea).
Q: Do you offer custom (OEM/ODM) bearing solutions?
A: Yes, we support custom bearing manufacturing based on provided drawings or specifications.
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.
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Product Summary
- Product Name
- High Precision NN3017 NN3018 NN3019 Cylindrical Roller Bearing 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 NN3017 NN3018 NN3019 Cylindrical Roller Bearing P5 P4 W33
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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