3313 A-2Z
Double Row Angular Contact Ball Bearings
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3313 A-2Z Bearing Product Overview & Core Advantages
The 3313 A-2Z is a double row angular contact ball bearing engineered for applications requiring high rigidity and precision performance. This shielded bearing excels at simultaneously handling combined radial and bidirectional axial loads, making it ideal for compact arrangements where space optimization is critical. Manufactured to P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy and reliability in demanding industrial environments.
3313 A-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 3313 | Standard bearing series with 65mm bore, 140mm OD | Standardized dimensions for easy replacement |
| A | Angular contact design (30° contact angle) | Optimized for axial load capacity |
| 2Z | Double-sided steel shields | Contaminant protection while maintaining high-speed capability |
3313 A-2Z Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row construction provides superior stiffness compared to single row bearings, enabling stable operation under heavy combined loads and minimizing deflection in precision applications.
Enhanced Load Capacity: With a radial dynamic load rating of 32,850 lbf and radial static load rating of 24,750 lbf, this bearing reliably handles significant radial and bidirectional axial loads simultaneously.
Optimized High-Speed Performance: The stainless steel cage ensures dimensional stability at elevated speeds, supporting operation up to 4,500 rpm. The factory-applied lubrication and shielded design maintain consistent performance throughout the speed range.
Maintenance-Free Operation: Pre-lubricated and featuring double-sided shields (2Z), the bearing offers long-term protection against contamination while eliminating the need for relubrication in most applications.
3313 A-2Z Bearing Typical Application Areas
- Machine Tool Spindles: Precision machining centers requiring high rigidity and running accuracy
- Industrial Gearboxes: Power transmission systems handling combined radial and axial loads
- Pump and Compressor Systems: Applications demanding reliable performance in contaminated environments
- Material Handling Equipment: Conveyor systems and positioning mechanisms requiring durable bearing solutions
- Precision Industrial Machinery: Equipment where P6 tolerance class and consistent performance are critical
