Double Row Cylindrical Roller Bearing NN3008 Tn/Sp for High-Speed Precision Spindles

Product Specifications

Application Suitability

NN3008 Tn/Sp Double Row Cylindrical Roller Bearing: Solving Precision Spindle Challenges

Selecting the right bearing for high-speed precision spindles often means balancing load capacity against rotational accuracy. Many buyers face downtime from premature bearing failure due to material hardness issues or incorrect clearance selection, while others struggle to source specific double row cylindrical roller bearings with the exact specifications needed for their equipment.

Engineered for High-Speed Precision Spindle Performance

This NN3008 Tn/Sp double row cylindrical roller bearing addresses these challenges through its separated design and precision manufacturing. With ISO 9001 certified production processes, we ensure each bearing meets strict dimensional and hardness standards (60-64 HRC), critical for maintaining stability in high-speed spindle applications. Our extensive inventory covers a wide range of bearing types, allowing for same-day shipping on in-stock items to minimize production delays.

Optimal Performance in Precision Machining Environments

Designed for high-speed precision spindles, this bearing excels in applications requiring consistent radial load support and precise rotational alignment. Its non-aligning design suits rigid spindle assemblies where misalignment is minimal, while the available clearance options (C0 to C5) allow customization for specific operating conditions—from tight tolerance machining centers to high-speed milling equipment.

Key Engineering Features for Reliable Operation

The bearing's separated construction allows for easy mounting and dismounting, simplifying maintenance procedures in spindle rebuilds. Brass and steel cage options provide durability across different temperature ranges, with brass offering better heat dissipation for continuous high-speed operation. The Z1V1 to Z3V3 vibration levels ensure smooth performance, reducing noise and extending spindle life by minimizing unnecessary vibration-induced wear. Surface hardness of 60-64 HRC enhances resistance to contact fatigue, a common failure point in high-load, high-speed applications.

Total Cost of Ownership: Why Precision Matters

Choosing a precision cylindrical roller bearing like the NN3008 Tn/Sp directly impacts total operating costs. Inferior bearings with inconsistent hardness or imprecise clearances can cause spindle runout, leading to poor part quality, increased tool wear, and unplanned downtime. In contrast, properly specified bearings reduce maintenance frequency and extend service intervals, lowering long-term costs despite potentially higher initial investment. This aligns with ISO 281 bearing life calculations, where material quality and precision directly influence fatigue life under load.

Quality Assurance You Can Verify

Packaging & Shipping

• Packaged in cartons with palletized options for bulk orders
• Same-day shipping available for in-stock items
• Multiple logistics options including express courier, air freight, and sea freight
• Low minimum order quantity supported, ideal for both maintenance and production requirements

Get Your NN3008 Tn/Sp Bearing Quote Today

Whether you need a single NN3008 Tn/Sp bearing for a spindle repair or bulk quantities for production, provide your required specifications—including cage material, clearance, and quantity—and we’ll deliver a competitive quote with lead time. Our team can also assist with cross-referencing part numbers to ensure compatibility with your equipment.

Frequently Asked Questions