3320 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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3320 A Bearing Product Overview & Core Advantages
The 3320 A is a precision double row angular contact ball bearing engineered for applications demanding high rigidity and reliable performance under combined loads. Its double row design enables it to simultaneously support substantial radial loads and bidirectional axial loads, making it an ideal choice for compact arrangements where space is limited. Manufactured to P6 (ABEC-3) tolerance class, this bearing ensures high running accuracy and is pre-lubricated for immediate use, offering exceptional operational reliability in demanding industrial environments.
3320 A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3320 | Basic bearing designation, defining the standard bearing dimensions (100 mm bore, 215 mm OD). |
| A | Signifies a specific contact angle of 30°, optimized for carrying higher axial loads. |
3320 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, effectively handling combined loads and moment loads. The optimized contact angle ensures excellent bidirectional axial load capacity.
- Precision & Speed: Built to P6 tolerance for high running accuracy. The lightweight, durable stainless steel cage ensures stable operation and contributes to the high limiting speed of 2,800 rpm.
- Robust Construction: Components made from chrome steel offer high load ratings and long service life. The open seal type allows for custom lubrication solutions to meet specific application needs.
- Pre-lubricated & Ready-to-Use: The bearing comes pre-lubricated, facilitating easy installation and immediate operation within a wide temperature range of -30°C to 110°C.
3320 A Bearing Typical Application Areas
The 3320 A is ideally suited for high-performance machinery requiring robust support and precision, including:
- Machine Tool Spindles
- Gearboxes and Transmissions
- Industrial Pumps and Compressors
- Precision Agricultural Equipment
- Material Handling Systems
