High Precision SKF 6004 Deep Groove Ball Bearing Zz 2RS DDU for CNC Machine Tools 20x42x12mm

Product Specifications

Application Industries

Minimize CNC Downtime with Genuine SKF 6004 Deep Groove Ball Bearings

CNC machine operators know the cost of unexpected spindle failure—hours of production lost, missed deadlines, and costly repairs. When precision bearings fail prematurely, the root cause often traces back to substandard components or incorrect specifications. Sourcing from multiple suppliers only compounds the problem, with mismatched delivery times and inconsistent quality control delaying critical maintenance.

Genuine SKF 6004 Bearings: In Stock for Immediate Deployment

Our SKF 6004 deep groove ball bearing delivers the reliability CNC machine tools demand. As an officially authorized SKF distributor, we guarantee 100% authentic products with full certification documentation. With P4/P2 precision grade bearings in ready stock, we can fulfill urgent orders for this 20x42x12mm bearing, minimizing your equipment downtime. Whether your application requires Zz, 2RS, or DDU seals, our cross-brand model matching ensures you get the exact specification needed for your spindle or drive system.

Engineered for High-Precision Rotational Performance

This SKF 6004 bearing excels in high-speed CNC applications where radial load capacity and rotational accuracy are critical. With a contact angle of 0°, it efficiently handles pure radial loads at operating speeds up to industry standards for precision machine tools. The single-row design and non-aligning configuration make it ideal for compact spindle assemblies, while its bearing steel construction ensures durability under continuous operation. Whether used in vertical machining centers or horizontal lathes, this bearing maintains consistent performance even under varying temperature conditions.

Technical Specifications That Impact Machine Performance

The precision rating of your SKF 6004 bearing directly affects CNC machining accuracy. Our available P4 grade offers tighter tolerances for runout and dimensional stability, critical for achieving micron-level part finishes. Vibration classes Z1V1 to Z3V3 allow customization based on noise sensitivity—Z3V3 variants reduce operational sound in high-precision environments. Seal type selection matters too: 2RS seals provide effective protection against coolant and debris ingress in wet machining environments, while open designs suit applications requiring frequent relubrication. The 20mm bore diameter and 42mm outside diameter balance load capacity with compact installation, fitting standard spindle configurations across major CNC brands.

Why Authenticity Matters for Total Cost of Ownership

Counterfeit bearings may offer initial cost savings, but they often fail within months, leading to unplanned downtime and secondary equipment damage. A single spindle failure can cost thousands in production losses alone. Our genuine SKF 6004 bearings meet ISO 9001 and DIN quality standards, with full-process quality traceability from raw material to delivery. The precision testing procedures we enforce ensure each bearing meets SKF's strict performance criteria, delivering longer service life and predictable maintenance intervals. When calculating total cost of ownership, the reliability of authentic components far outweighs the risks of substandard alternatives.

Why 800+ Global Clients Trust Our Bearing Solutions

Packaging & Shipping

• Original SKF packaging with product authenticity labels and batch traceability documentation
• Expedited processing available for emergency maintenance requirements
• Global logistics options including DHL, FedEx, and UPS for reliable door-to-door delivery
• Real-time shipment tracking provided from warehouse dispatch to final delivery
• Flexible order quantities with no minimum purchase requirement, supporting both scheduled maintenance and urgent repairs

Get Your SKF 6004 Bearing Shipped Today

Every hour of CNC downtime impacts your bottom line. Our ready stock of SKF 6004 deep groove ball bearings means you can restore equipment quickly. Send us your exact bearing designation, application details, and required quantity—our team will provide a unified quotation within one working day, complete with technical verification and authorization certificates.

Frequently Asked Questions