High Precision Double Row Angular Contact Ball Bearing 3304-a for CNC Machine Tool Spindle with P4/P2 Precision Grade

Product Specifications

Application Industries

Eliminate CNC Spindle Downtime with 3304-a High Precision Double Row Angular Contact Ball Bearing

CNC machine tool operators know the cost of spindle failure—unplanned downtime, scrapped workpieces, and missed deadlines. Precision bearings that fail prematurely due to poor quality or incorrect specification can halt production lines for days. Sourcing genuine high-precision bearings often means navigating multiple suppliers with varying lead times, making emergency repairs even more challenging.

3304-a Bearings in Stock: P4/P2 Precision for Critical Spindle Applications

Our High Precision Double Row Angular Contact Ball Bearing 3304-a is designed to meet the rigorous demands of CNC machine tool spindles. As an official SKF distributor, we maintain sufficient stock of P4 and P2 precision grade bearings, ensuring you can access the exact component you need without extended wait times. Each bearing undergoes precision testing compliant with ISO 9001 and DIN standards before shipment, guaranteeing it meets the tight tolerances required for high-speed spindle operation.

Engineered for High-Speed, High-Precision Spindle Performance

This Double Row Angular Contact Ball Bearing excels in applications where both radial and axial loads are present, such as CNC spindle systems operating at high rotational speeds. The separated design allows for easy mounting and dismounting, simplifying maintenance procedures. Its angular contact structure provides the necessary rigidity to maintain machining accuracy, even under varying cutting forces—a critical factor for producing complex components with tight dimensional tolerances.

Technical Features That Ensure Reliable Spindle Operation

The 3304-a bearing’s precision rating directly impacts spindle performance: P4 grade offers runout and dimensional tolerances suitable for most high-precision CNC applications, while P2 grade provides the exceptional accuracy required for aerospace and medical component manufacturing. The choice of cage material—steel, copper, or nylon—allows optimization for specific operating conditions; steel cages excel in high-temperature environments, while nylon cages reduce noise and friction in high-speed scenarios. Bearing steel construction ensures durability and resistance to wear, extending service life in continuous operation settings.

Why Genuine SKF Bearings Reduce Total Cost of Ownership

Non-genuine bearings may offer lower upfront costs, but they often result in higher long-term expenses. Inferior materials and manufacturing processes lead to premature failure, requiring more frequent replacements and unplanned maintenance. In contrast, genuine SKF 3304-a bearings provide consistent performance, reducing downtime and extending intervals between spindle overhauls. Our precision inspection system further ensures that each bearing meets SKF’s strict quality standards, eliminating the risk of receiving substandard components that could compromise your equipment’s performance.

Your Trusted Partner for High-Precision Bearing Solutions

Packaging & Shipping

• Original SKF packaging with product identification and batch traceability
• Secure carton and pallet packaging to prevent damage during transit
• Priority delivery available for urgent maintenance needs
• Global shipping via DHL, FedEx, UPS, air, or sea freight
• Full logistics tracking provided from warehouse to delivery
• Minimum order quantity of 1 piece supported

Get Your 3304-a Bearing Shipped Today

Don’t let spindle downtime impact your production schedule. Send us your 3304-a bearing requirements, including precision grade and quantity, and our team will provide a unified quotation within one working day. With our sufficient stock, your order can be shipped immediately, minimizing the time your CNC machine is out of operation.

Frequently Asked Questions