High-precision SKF NN 3020 KTN3/SPW33 Cylindrical Roller Bearing for CNC Machine Tools

Product Specifications

Application Industries

Reduce CNC Downtime with Genuine SKF NN 3020 KTN3/SPW33 Bearings

CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, emergency repair costs, and missed deadlines. Many face the dilemma of choosing between overpriced dealer parts with long lead times or uncertified bearings that risk premature wear. When precision matters most, compromising on bearing quality can mean the difference between meeting tolerance requirements and costly rework.

High-precision Bearings in Stock for Immediate Shipment

Our SKF NN 3020 KTN3/SPW33 cylindrical roller bearing solves these challenges with 100% authentic product guaranteed through official brand authorization. As a premium bearing distributor, we maintain sufficient ready stock of P4/P2 precision grade bearings, ensuring this double row cylindrical roller bearing is available for rapid delivery. Designed specifically for CNC machine tools, it delivers the consistent performance needed for high-speed machining operations and tight tolerance applications.

Engineered for CNC Machine Tool Performance

This SKF NN 3020 bearing excels in the demanding conditions of CNC machine tool spindles, where it must handle radial loads while maintaining exceptional rotational accuracy. The double row design provides increased rigidity and load-carrying capacity compared to single row alternatives, making it ideal for heavy-duty machining processes. With its open construction, it allows for precise lubrication control—critical for maintaining optimal operating temperatures during extended production runs.

Technical Features That Ensure Machining Precision

The NN 3020 KTN3/SPW33 designation reveals key performance characteristics: the "KTN3" suffix indicates a polyamide cage with internal clearance optimized for precision applications, while "SPW33" denotes strict dimensional tolerances suitable for high-precision spindle applications. The 100 mm inner diameter matches common CNC spindle configurations, ensuring compatibility with standard machine tool designs. This combination of features results in minimal runout, reduced vibration, and consistent performance—essential qualities for achieving superior surface finishes and part accuracy.

Why Authenticity Matters for Your Production Line

Non-genuine bearings often fail prematurely due to substandard materials and manufacturing processes, leading to unexpected downtime that can cost thousands in lost production. A single spindle failure in a CNC machine can halt an entire production line, while the hidden costs of rework and material waste further impact profitability. Our precision-centric quality inspection system, compliant with ISO 9001 and DIN standards, ensures every SKF high-precision bearing meets exacting performance specifications, providing reliable service life and predictable maintenance intervals.

Your Trusted Partner for Precision Bearings

Packaging & Shipping

• Protective industrial packaging designed to preserve bearing accuracy during transportation
• Package Size: 20.00cm × 20.00cm × 20.00cm
• Package Gross Weight: 0.300kg
• Express delivery options available for urgent maintenance needs
• Single item ordering supported for emergency repairs

Get Your CNC Machine Back to Production

Don't let bearing issues disrupt your manufacturing schedule. Whether you need a replacement for scheduled maintenance or emergency repair, our in-stock SKF NN 3020 KTN3/SPW33 bearing is ready to ship. Every day of downtime impacts your bottom line—secure your replacement bearing today and maintain your production momentum.

Frequently Asked Questions