S7208 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7208 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7208 ACDGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single bearing from a Universal Matchable (SU) pair, it offers outstanding performance in handling combined loads (radial and axial). Its P4A tolerance class ensures ultra-precise running, making it ideal for high-speed spindles and other precision machinery. The sealed design with phenolic cage contributes to its high-speed capability and reliable operation.
S7208 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | High-precision bearing series |
| 208 | Standard dimension series (40mm bore, 80mm OD) |
| AC | Angular Contact design (25° contact angle) |
| DGA | Extra light preload (Class A) |
| P4A | Super precision tolerance class |
S7208 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides optimal support for combined loads, offering high rigidity against complex force conditions.
Precision & Speed: Manufactured to P4A tolerance standards with a phenolic cage, this bearing achieves a high limiting speed of 41,000 rpm, essential for high-speed applications.
Sealed & Lubricated for Life: The sealed design protects against contamination. Pre-greased for operation within a temperature range of -30°C to 110°C, ensuring long service life with minimal maintenance.
Universal Matching: As part of a Universal Matchable (SU) set, it can be paired with another identical bearing for precise preload and performance in duplex arrangements.
S7208 ACDGA/P4A Bearing Typical Application Areas
The S7208 ACDGA/P4A is ideally suited for:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps & Compressors
- Robotic Arm Joints & Precision Rotary Axes
