3322 A
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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3322 A Bearing Product Overview & Core Advantages
The 3322 A is a double row angular contact ball bearing engineered for applications requiring high precision and exceptional rigidity. This metric series bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and bidirectional axial loads—making it ideal for demanding industrial environments. Its open design allows for customized lubrication solutions, while the P6 (ABEC-3) tolerance class ensures consistent performance in high-precision machinery. With a robust construction using chrome steel rings and balls, along with a stainless steel cage, it delivers reliable operation under challenging conditions.
3322 A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| A | 30° Contact Angle | Optimized for handling high axial loads in both directions while maintaining radial load capacity |
| Open | No Seals/Shields | Enables custom lubrication and high-speed operation; requires controlled operating environments |
3322 A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness compared to single row bearings, effectively distributing loads across two contact lines. This construction enables the bearing to handle radial dynamic load ratings of 65,475 lbf and static load ratings of 68,625 lbf, making it suitable for heavy-duty applications.
Optimized Contact Geometry: With a 30° contact angle and precise load point positioning (142mm from side face), the bearing efficiently manages combined loads while minimizing deflection. The calculated shoulder diameters (outer ring: 200.01mm, inner ring: 152.99mm) ensure proper seating and alignment.
High-Speed Capability: The stainless steel cage provides excellent guidance and stability, contributing to the bearing's limiting speed of 2,600 rpm. The open design allows for efficient lubrication management, critical for maintaining performance at elevated speeds.
Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional controls (bore tolerance: -0.015mm to 0, OD tolerance: -0.02mm to 0), ensuring consistent performance in precision applications.
3322 A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring rigid support and accurate rotational performance
- Industrial Gearboxes: Heavy-duty transmission systems demanding reliable operation under combined loads
- Material Handling Equipment: Conveyor systems and rotating machinery in manufacturing facilities
- Pump and Compressor Systems: Applications requiring stable operation with bidirectional axial loads
- Industrial Machinery: General heavy equipment where precision and durability are critical
