High Precision Double Row Cylindrical Roller Bearing NN3005 NN3006 NN3007 P5 P4 W33

Product Specifications

Application Suitability

Need Reliable NN3005 NN3006 NN3007 Double Row Cylindrical Roller Bearings? Here’s What Counts

When industrial equipment fails due to bearing issues, the costs add up quickly—unplanned downtime, replacement parts, and maintenance labor. Many buyers struggle with finding precise replacements across different brands or dealing with inconsistent quality that leads to premature wear. For high-precision applications like machine tool spindles, even minor deviations in bearing accuracy can compromise performance.

Engineered for Stable, High-Load Performance

Our double row cylindrical roller bearings tackle these challenges with precision-engineered design. As a supplier with access to full product lines from leading manufacturers, we ensure you get the exact NN3005, NN3006, or NN3007 bearing with P4/P5 precision and W33 lubrication grooves you need. Ideal for heavy radial load applications in steel mills and automation systems, these bearings maintain alignment under stress while supporting high rotational speeds.

Optimal Performance in Demanding Conditions

These bearings excel in environments where consistent radial load capacity and rigidity are critical. Operating temperatures typically range from -30°C to 120°C, making them suitable for industrial settings with moderate temperature variations. The double row design provides higher load ratings than single row alternatives, while the W33 feature enables efficient lubrication distribution—essential for extended service life in gearboxes and spindle applications.

Key Engineering Features Explained

The NN series cylindrical roller bearings offer distinct advantages for precision applications. Their separable inner and outer rings allow for easy mounting and dismounting, simplifying maintenance. The P4 and P5 precision classes ensure tight dimensional tolerances, reducing vibration in high-speed machinery. Surface hardness of HRC 58-62 on raceways and rollers enhances wear resistance, while the double row configuration distributes load evenly to minimize stress concentration. For applications requiring interchangeability, these bearings follow international dimensional standards, ensuring compatibility with existing equipment.

Why Precision Bearings Reduce Total Cost

Choosing the right bearing directly impacts your equipment’s total cost of ownership. Inferior bearings with poor precision can cause excessive vibration, leading to premature failure of adjacent components like gears or shafts. In contrast, our P4/P5 class bearings maintain tight radial runout, reducing energy consumption and extending maintenance intervals. By investing in bearings that meet ISO standards for dimensional accuracy and load capacity, you avoid costly unplanned downtime and extend the service life of your machinery—ultimately lowering long-term operational expenses.

Quality You Can Trust in Every Shipment

Packaging & Shipping

• Standard industrial packaging with protective wrapping to prevent damage during transit
• Stock availability for prompt shipment—typically within 1-3 business days for in-stock items
• Flexible shipping options including express courier, air freight, and sea freight to global destinations
• Low minimum order quantity—supports both small maintenance orders and large production runs

Get Your Bearing Quote Today

Whether you need NN3005, NN3006, NN3007, or other cylindrical roller bearings, we can provide a competitive quote based on your specific requirements. Simply share the model number, quantity, and delivery location, and our team will respond promptly with pricing and availability. With access to multiple brands and a focus on technical accuracy, we ensure you get the right bearing for your application.

Frequently Asked Questions