High-Precision SKF NN3072 K/SPW33 Double Row Cylindrical Roller Bearing for CNC Machinery

Product Specifications

Application Industries

Stop CNC Downtime — Genuine SKF NN3072 K/SPW33 Bearing Delivered Fast

CNC operators know the cost of unexpected spindle failure: unplanned downtime, missed production deadlines, and costly repairs. Many face challenges with counterfeit bearings that fail prematurely or struggle to source precision-grade components with reliable delivery. When your machine tool needs a double row cylindrical roller bearing, compromising on quality isn’t an option.

Genuine SKF Bearings, In Stock and Ready to Ship

The SKF NN3072 K/SPW33 double row cylindrical roller bearing is engineered for the high-precision demands of CNC machinery. As an officially authorized SKF distributor, we guarantee 100% authentic products with full certification documentation. Our ready stock of P4/P2 precision grade bearings ensures rapid delivery, minimizing your equipment downtime. Whether your CNC spindle requires a replacement or scheduled maintenance, this bearing delivers the stability and accuracy critical for high-speed machining operations.

Where This Bearing Performs

Designed for heavy radial loads and high rotational speeds, the NN3072 K/SPW33 excels in CNC machine tool spindles and precision rotary applications. Its double row cylindrical roller structure provides superior rigidity and load distribution, making it ideal for continuous duty cycles in metalworking and precision manufacturing. The open seal design allows for optimal lubrication flow, ensuring consistent performance even under demanding operating conditions.

Technical Details That Define Performance

The precision rating of Sp and up ensures minimal radial runout, critical for maintaining tight tolerances in CNC machining. With an inner diameter of 360 mm, this bearing accommodates large spindle shafts while the double row configuration increases load-carrying capacity compared to single row designs. The cylindrical roller structure reduces friction, enabling higher operating speeds without sacrificing durability. Every unit undergoes standardized precision testing before shipment, ensuring compliance with ISO 9001 and DIN quality standards.

The True Cost of Counterfeit Bearings

Choosing non-genuine bearings may save upfront costs but often leads to hidden expenses: premature failures requiring emergency repairs, extended downtime, and potential damage to expensive spindle components. Genuine SKF bearings are manufactured to strict material and dimensional specifications, delivering predictable service life and reducing total cost of ownership. Our full-process quality traceability ensures you receive a product that meets SKF’s exacting standards, eliminating the risks associated with counterfeit or substandard components.

Why Buyers Trust Us

Packaging & Shipping

• Package Size: 10.00cm × 10.00cm × 10.00cm
• Package Gross Weight: 0.150kg
• Professional shockproof & dustproof packaging to preserve precision
• Centralized shipment with real-time logistics tracking
• Single Item selling unit, supporting small-batch and emergency orders

Get Your CNC Bearing Now

Don’t let equipment downtime impact your production schedule. Whether you need a single replacement or bulk procurement, our ready stock ensures fast delivery. Send your order details today, and our team will provide a unified quotation with full technical documentation within one working day.

Frequently Asked Questions