-- SKF Authorized Engineering Partner
Ensure smooth, reliable performance in your machinery with the NF303em Cylindrical Roller Bearing, expertly crafted to handle radial loads with precision. This single-row, unseparated design from trusted brands like NSK, Koyo, and NTN delivers consistent operation, minimizing downtime and extending equipment lifespan.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | 6206R |
| Separated | Unseparated |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Specification | 10*26*8mm |
| Trademark | NTN |
| Origin | Germany Sweden Japan |
| HS Code | 8482102000 |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Conveyor systems, gearboxes |
| Mechanical Engineering | Electric motors, pumps |
| Industrial Machinery | Machine tool spindles, textile equipment |
Finding the right cylindrical roller bearing for your equipment can be frustrating—with dozens of brands, complex dimensional standards, and inconsistent quality across suppliers. Many buyers waste time cross-referencing models or end up with bearings that fail prematurely due to substandard materials or imprecise manufacturing.
Our NSK Koyo NTN NF303em, NF304em, NF305em cylindrical roller bearings solve these challenges with a comprehensive approach. As a professional bearing supplier, we cover all major international brands and can source exact models to match your specifications. Whether you need NTN’s precision engineering or require alternatives from SKF, NSK, or Koyo, our extensive network ensures you get the right part without juggling multiple suppliers.
These cylindrical roller bearings are designed for single-row radial load applications where high rigidity and durability matter. With a bearing steel construction and unseparated design, they excel in machinery like gearboxes, electric motors, and conveyor systems—handling continuous radial forces while maintaining dimensional stability. The 10*26*8mm specification (for model 6206R) fits standard shaft sizes, making them easy to integrate into existing equipment setups.
The bearing steel material provides optimal hardness and wear resistance, critical for withstanding heavy loads without deformation. The unseparated design simplifies installation and ensures components remain aligned during operation, reducing the risk of premature failure. Precision manufacturing controls dimensional tolerances, ensuring interchangeability with major international standards—so you can replace bearings without modifying equipment housings or shafts. Each unit undergoes rigorous testing, including dimensional checks and surface hardness verification, to meet industry performance requirements.
Choosing the right cylindrical roller bearing directly impacts your bottom line. Inferior bearings with poor material quality or imprecise dimensions often lead to unexpected downtime, increased maintenance costs, and damage to adjacent components. Our bearings, sourced from established manufacturers in Germany, Sweden, and Japan, deliver consistent performance—minimizing replacement frequency and maximizing equipment uptime. By focusing on reliability rather than upfront cost, you reduce long-term expenses associated with premature failures.
All bearings in our inventory follow ISO 9001 certified production and inspection processes. Raw materials are tested for chemical composition and mechanical properties before manufacturing, and finished products undergo comprehensive checks for size, hardness, and surface treatment. We provide a warranty period covering manufacturing defects, ensuring you receive bearings that meet specified performance standards. With our ability to source from multiple international brands, we can fulfill orders according to your exact brand or quality requirements.
Whether you need NF303em, NF304em, NF305em, or other cylindrical roller bearing models, we can provide competitive pricing and availability. Simply share the model number, dimensions (d x D x B), and required quantity, and our team will respond promptly with a detailed quote. The sooner you confirm your requirements, the faster we can arrange delivery to keep your operations running smoothly.
Q: Do you supply bearings from other brands besides NTN?
A: Yes, we support inquiries for all major international brands including SKF, NSK, Koyo, NACHI, IKO, FAG, Timken, and domestic Chinese brands, providing you with multiple options to meet your specific needs.
Q: How can I confirm if a bearing will fit my equipment?
A: Provide the required dimensions (bore diameter, outer diameter, width) or existing model number, and our technical team will verify compatibility with standard equipment specifications.
Q: What warranty do you offer on bearings?
A: We provide a warranty period covering manufacturing defects. Specific terms and duration are detailed in each order contract, ensuring clear protection for your purchase.
Q: What is the minimum order quantity?
A: We offer low minimum order quantities, supporting small-scale maintenance orders and large production requirements, with flexibility to meet your operational needs.
Q: How long does shipping take?
A: In-stock items are dispatched immediately. Shipping time depends on the selected method: express courier (3-5 days), air freight (7-10 days), or sea freight (30-40 days), with tracking provided for all orders.
Q: Do you offer custom bearing solutions?
A: Yes, we support OEM/ODM customization according to your technical drawings or specifications, including material selection, dimensions, and special surface treatments.
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 for immediate assistance.
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: NSK Koyo NTN NF303em NF304em NF305em Cylindrical Roller Bearing
-- Related Products
SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.
