3310 A-2Z
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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3310 A-2Z Bearing Product Overview & Core Advantages
The 3310 A-2Z is a double row angular contact ball bearing engineered for applications demanding high rigidity and precision. This metric series bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and axial loads in both directions. Its compact double row construction provides superior stability and stiffness compared to single row designs, making it ideal for high-reliability machinery. Pre-lubricated and shielded (2Z), it offers long-term performance with minimal maintenance, operating effectively within a temperature range of -30°C to 110°C. With a P6 (ABEC-3) tolerance class, it ensures consistent performance in high-speed and precision applications.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 3310 | Basic bearing series designation, indicating the bearing dimensions: 50 mm bore, 110 mm outside diameter, 44.4 mm width. |
| A | Contact angle of 30°, optimized for carrying substantial axial loads. |
| 2Z | Bearing is equipped with shields on both sides. This provides effective protection against contaminant ingress while retaining the pre-applied lubricant, enabling a maintenance-free design. |
3310 A-2Z Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design significantly increases the bearing's moment stiffness and load-carrying capacity. It is engineered to support combined radial and axial loads from both directions simultaneously, making it far more robust than single row bearings for complex loading conditions.
Precision & Speed Performance: Manufactured to a P6 (ABEC-3) tolerance class, this precision bearing ensures smooth operation and reduced vibration. The stainless steel cage provides stability and contributes to a high limiting speed of 6,000 rpm, suitable for demanding high-speed applications.
Durability & Maintenance-Free Operation: The chrome steel rings and balls offer excellent wear resistance and fatigue life. The integral 2Z shields protect the internal components and retain the factory-applied lubricant, creating a sealed-for-life unit that requires no re-lubrication under normal operating conditions.
3310 A-2Z Bearing Typical Application Areas
The 3310 A-2Z is suited for a wide range of industrial machinery where high rigidity, precision, and reliability are paramount. Key applications include:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Gearboxes and Power Transmission Systems
- Precision Agricultural and Construction Equipment
- Material Handling Systems
