3208 A
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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3208 A Bearing Product Overview & Core Advantages
The 3208 A is a precision double row angular contact ball bearing engineered for applications requiring high rigidity and accurate rotational performance. Its double row design enables it to support substantial combined loads—simultaneously handling radial forces and bidirectional axial loads. Manufactured to a P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy. Pre-lubricated and featuring an open design, this bearing is ideal for high-speed operations and scenarios demanding reliable, long-term performance in precision machinery.
3208 A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Significance |
|---|---|---|
| A | 30° Contact Angle | Optimized for high axial load capacity and rigidity. |
| Open | No Seal / Shield | Allows for higher limiting speeds and custom lubrication regimes. |
3208 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction and 30° contact angle provide superior stiffness, enabling stable operation under significant combined radial and axial loads (Dynamic: 10,800 lbf, Static: 8,212 lbf).
- High-Speed Performance: The lightweight, durable stainless steel cage ensures balanced operation and low friction, contributing to a high limiting speed of 8,000 rpm.
- Precision Engineering: Manufactured to P6 tolerance with precise bore and outside diameter tolerances, guaranteeing smooth, quiet, and accurate rotation essential for precision applications.
- Robust Material Construction: Rings and balls made from chrome steel offer high fatigue resistance and durability, suitable for a wide operating temperature range from -30°C to 110°C.
3208 A Bearing Typical Application Areas
The 3208 A is ideally suited for demanding applications across various industries, including:
- Machine Tool Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- High-Frequency Motors
- Medical and Laboratory Equipment
