Double Row Angular Contact Ball Bearing 3304 High Precision for CNC Machine Tool Spindle

Product Specifications

Application Industries

Minimize CNC Machine Downtime with High Precision 3304 Angular Contact Ball Bearings

CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, missed deadlines, and costly repairs. When bearings lack precision or durability, tool runout increases, surface finish quality drops, and replacement cycles shorten. Sourcing reliable double row angular contact ball bearings that meet strict performance standards can be a challenge, especially when balancing cost, lead time, and technical support.

High Precision 3304 Angular Contact Ball Bearings for CNC Spindles

Our Double Row Angular Contact Ball Bearing 3304 is engineered to address these pain points, delivering the precision and stability critical for CNC machine tool spindles. With precision ratings from P0 to P4 and noise grades up to Z4, these bearings minimize vibration and ensure consistent performance even under high-speed operating conditions. As a professional bearing manufacturer with decades of export experience, we support both standard specifications and OEM/ODM customization to match your exact spindle requirements.

Optimal Performance in CNC Spindle Applications

CNC machine tool spindles demand bearings that handle combined radial and axial loads while maintaining tight tolerances. The double row angular contact design of the 3304 bearing provides high rigidity and axial load capacity, making it ideal for high-precision machining operations. Whether used in vertical or horizontal spindles, these bearings excel in applications requiring smooth rotation, low heat generation, and long service life—key factors in maximizing machine uptime and productivity.

Technical Features That Enhance Spindle Performance

The 3304 Double Row Angular Contact Ball Bearing incorporates several critical features that directly impact CNC spindle performance. Precision ratings from P0 to P4 ensure minimal radial and axial runout, which is essential for maintaining machining accuracy. The availability of steel, copper, or nylon cages allows customization based on speed and load requirements—steel cages offer durability for heavy loads, while nylon cages reduce friction at high speeds. High-grade bearing steel construction ensures resistance to wear and fatigue, extending bearing life even in continuous operation. Proper lubrication with oil or grease is factory-applied to optimize performance and reduce maintenance needs.

Why Quality Bearings Matter for CNC Operations

Choosing low-quality or counterfeit bearings for CNC spindles may seem cost-effective initially, but the hidden costs are significant. Premature bearing failure can lead to spindle damage, requiring expensive repairs and lengthy downtime. Poor precision results in scrap parts and rework, eroding profit margins. In contrast, our high precision 3304 angular contact ball bearings, manufactured to ISO, ABMA, and DIN standards, deliver consistent performance and reliability. With a 12-month warranty and strict quality control processes—including dimensional detection and noise vibration testing—we ensure that every bearing meets the highest standards, reducing total cost of ownership over time.

Why Saifan Bearings Stands Out as a Supplier

Packaging & Shipping

• Carton pallet packaging for secure transportation
• Sample orders shipped within 3-5 working days
• Bulk orders delivered within 5-15 working days
• Multiple logistics options available to meet your timeline
• 1 piece MOQ for standard bearings, supporting emergency repairs

Get Your 3304 Bearing for CNC Spindle Today

Don’t let subpar bearings compromise your CNC machine performance. Whether you need a standard 3304 bearing or a customized solution, our team is ready to assist. Send us your specifications, and we’ll provide a tailored quote to meet your requirements. With fast delivery and reliable support, we help you get back to production quickly and keep your machines running smoothly.

Frequently Asked Questions