Double Row Angular Contact Ball Bearing 3309A-2Z/C3 MT33 Shielded for CNC Machine Tools

Product Specifications

Application Industries

Stop CNC Machine Downtime with 3309A-2Z/C3 MT33 Shielded Double Row Angular Contact Ball Bearing

CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, maintenance crews scrambling, and deadlines slipping. Many face the challenge of sourcing reliable bearings that match original specifications, only to encounter long lead times or questionable quality from unauthorized suppliers.

Genuine SKF Bearings, In Stock for Immediate Delivery

Our 3309A-2Z/C3 MT33 Shielded Double Row Angular Contact Ball Bearing solves these issues with 100% authentic SKF quality and ready stock availability. As an officially authorized distributor, we maintain sufficient inventory of P4/P2 precision grade bearings, ensuring your CNC machine tools get the replacement parts they need without unnecessary delays. This bearing is specifically engineered for the high-precision requirements of CNC spindles, where consistent performance directly impacts machining accuracy.

Engineered for CNC Machine Tool Spindles

This double row angular contact ball bearing excels in high-speed rotational applications typical of CNC machine tool spindles. Its shielded design (2Z) provides effective protection against contamination, while the C3 clearance ensures optimal performance under thermal expansion conditions common in continuous operation. The MT33 designation indicates specialized manufacturing for precision applications, making it ideal for handling combined radial and axial loads in demanding machining environments.

Key Technical Features That Matter

The bearing's double row structure delivers higher radial load capacity compared to single row designs, crucial for maintaining spindle stability during heavy cutting operations. Precision ratings available up to P2 ensure minimal runout, directly contributing to superior workpiece surface finish. Multiple cage material options—steel, copper, and nylon—allow customization based on speed and temperature requirements: steel cages offer durability in high-load scenarios, while nylon cages reduce friction at higher rotational speeds. The combination of oil and grease lubrication compatibility provides flexibility for different maintenance protocols.

Authentic Bearings Reduce Total Cost of Ownership

Choosing genuine SKF bearings over counterfeit alternatives eliminates hidden costs associated with premature failures. Counterfeit bearings often fail within months, leading to repeated downtime, increased maintenance labor, and potential damage to expensive spindle components. Our bearings adhere to ISO 9001 and DIN quality standards, with full traceability from material verification to finished product delivery. While the initial investment may be higher, the extended service life and reduced failure risk result in lower total cost of ownership over time.

Why 800+ Global Clients Trust Our Bearing Solutions

Packaging & Shipping

• Carton pallet packaging designed to prevent damage during transit
• Ready stock items shipped within 3-7 working days
• Global logistics options including DHL, FedEx, UPS, air, and sea freight
• Real-time shipment tracking provided for all orders
• Minimum order quantity of 1 piece, supporting both emergency repairs and planned maintenance

Get Your CNC Machine Back to Production

Don't let bearing issues keep your CNC machines idle. Every hour of downtime impacts your bottom line—secure the 3309A-2Z/C3 MT33 bearing you need today and restore production efficiency. Our streamlined procurement process ensures you get the right part quickly, with full technical support available.

Frequently Asked Questions