3308 A-2Z
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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3308 A-2Z Bearing Product Overview & Core Advantages
The 3308 A-2Z is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing excels at simultaneously handling combined radial and bidirectional axial loads, making it ideal for compact arrangements where space is limited. Its shielded construction and pre-lubrication contribute to long service life with minimal maintenance, while the P6 (ABEC-3) tolerance class ensures consistent high-precision performance in demanding industrial environments.
3308 A-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3308 | Basic bearing designation indicating metric dimensions: 40mm bore, 90mm OD, 36.5mm width |
| A | Contact angle optimized for combined load capacity |
| 2Z | Double shielded construction providing effective contamination protection |
3308 A-2Z Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to handle significant combined loads while maintaining precise shaft positioning. With a radial dynamic load rating of 14,738 lbf and static load rating of 10,800 lbf, this bearing delivers reliable performance under demanding conditions.
Precision Performance: Manufactured to P6 (ABEC-3) tolerance class, the bearing ensures minimal runout and vibration. The stainless steel cage maintains ball alignment and contributes to smooth operation at the limiting speed of 7,500 rpm.
Maintenance-Free Operation: The double shields (2Z) effectively retain lubrication and exclude contaminants, while the pre-applied lubricant ensures immediate operation and extended service intervals. The bearing operates reliably within a temperature range of -30°C to 110°C.
3308 A-2Z Bearing Typical Application Areas
- Machine tool spindles and precision rotating assemblies
- Industrial pumps and compressor systems
- Material handling equipment requiring high rigidity
- Precision instruments and medical equipment
- Electric motors and gearboxes
- Agricultural machinery components
