Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
Precision Grinder N218em NJ218em NF218em NU218em Cylindrical Roller Bearing
Experience smoother, longer-lasting machinery performance with our Precision Grinder series cylindrical roller bearing, designed to minimize downtime and maximize operational efficiency. This Cylindrical Roller Bearing delivers exceptional radial load capacity and precise rotation, making it ideal for high-speed applications where reliability can’t be compromised.
- Engineered with NJ218em, NF218em, and NU218em variants to accommodate different mounting configurations and axial load requirements
- Precision-ground raceways ensure reduced friction and heat buildup, extending component life in demanding industrial environments
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 |
|---|---|
| Bearing Type | Cylindrical Roller Bearing |
| Model Number | N218em, NJ218em, NF218em, NU218em |
Application Suitability
| Industry | Typical Applications |
|---|---|
| 工程机械 | Hydraulic cylinder pivot points, gearbox shafts |
| 钢铁冶金 | Rolling mill equipment, conveyor systems |
| 自动化设备 | Precision machine tool spindles, robotic arms |
| 汽车 | Transmission assemblies, drive train components |
Struggling with Cylindrical Roller Bearing Selection? Here’s What Engineers Need to Know
Equipment downtime from mismatched bearing dimensions or premature failure costs manufacturers thousands annually. With dozens of international standards and brand-specific designations, finding the right cylindrical roller bearing for your application can feel like navigating a maze—especially when urgent repairs demand quick solutions.
Engineered for Reliable Power Transmission
Our cylindrical roller bearings (N218em, NJ218em, NF218em, NU218em series) address these challenges through ISO 9001-certified manufacturing processes and interchangeable dimensions with major international standards. Whether your equipment requires the N-series’ single rib design or the NU-series’ separable inner ring for easy maintenance, we maintain现货库存 to support rapid response for critical applications like steel mill conveyors and hydraulic press systems.
Optimal Performance in Heavy-Duty Applications
These bearings excel in high-radial-load environments with moderate axial displacement, typically found in industrial gearboxes, electric motor shafts, and material handling equipment. Operating temperatures ranging from -30°C to 120°C make them suitable for both indoor manufacturing facilities and outdoor construction machinery, while their precision-ground raceways minimize vibration under variable speed conditions.
Key Engineering Features Explained
The “em” suffix indicates optimized internal geometry for enhanced load distribution, extending service life by up to 30% compared to standard designs in similar operating conditions. Cylindrical roller bearings differ from ball bearings by distributing load across multiple rolling elements, making them ideal for applications requiring high radial load capacity without sacrificing rotational speed. The NJ and NU configurations offer different axial load capabilities—NJ designs accommodate light axial loads in one direction, while NU series provide greater axial displacement tolerance for thermal expansion scenarios.
Total Cost of Ownership Matters More Than Initial Price
Choosing a bearing based solely on upfront cost often leads to higher long-term expenses. Inferior materials lacking proper heat treatment result in premature spalling and fatigue, requiring unplanned maintenance and production interruptions. Our cylindrical roller bearings undergo rigorous hardness testing (HRC 58-62) and dimensional inspection to ensure consistent performance, directly reducing the total cost of ownership through extended service intervals and minimized downtime.
Quality Assurance You Can Verify
Every bearing undergoes multi-stage quality checks, including raw material certification, finished dimension verification, and surface roughness testing. We provide a standard质保期 against manufacturing defects, with clear documentation of inspection results available upon request. Our procurement network spans both自有 production facilities and established partnerships with global manufacturers, allowing us to fulfill orders for specific brand standards or custom specifications.
Packaging & Shipping
- Neutral industrial packaging with anti-corrosion protection
- 现货库存 for immediate dispatch on standard models
- Flexible shipping options: express courier, air freight, or sea freight
- Low minimum order quantity, supporting both maintenance and production requirements
Get Your Cylindrical Roller Bearing Quote Today
Whether you need to replace existing N218em/NJ218em/NF218em/NU218em bearings or source alternatives for obsolete models, provide your required dimensions, quantity, and application details. Our technical team can assist with cross-referencing and compatibility checks to ensure optimal selection.
Frequently Asked Questions
Q: Can you supply other cylindrical roller bearing models besides the N/NJ/NF/NU218em series?
A: Yes, we support procurement across all major brands and型号, including custom specifications. Provide the required dimensions or original equipment number for a comprehensive quote.
Q: How do I confirm if these bearings will fit my equipment?
A: Share the bore diameter (d), outer diameter (D), and width (B) from your current bearing, along with operating conditions. Our engineering team will verify compatibility and suggest alternatives if needed.
Q: What is your warranty policy for these bearings?
A: We provide a standard质保期 against manufacturing defects. Specific terms depend on application and order volume, with details outlined in each sales contract.
Q: What is the minimum order quantity for these cylindrical roller bearings?
A: We accept low minimum order quantities, including single-unit purchases for maintenance needs, with volume discounts available for production-scale orders.
Q: How quickly can you ship after order confirmation?
A: 现货库存 models ship within 24-48 hours. For non-stock items, lead times vary by manufacturer but typically range from 5-15 business days.
Q: Do you offer OEM/ODM services for custom bearing requirements?
A: Yes, we support custom manufacturing based on technical drawings or sample specifications, including material selection, precision class, and special lubrication options.
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.
Contact us via email or phone with your requirements.
Product Summary
- Product Name
- Precision Grinder N218em NJ218em NF218em NU218em Cylindrical Roller Bearing
- 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
Precision Grinder N218em NJ218em NF218em NU218em Cylindrical Roller Bearing
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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