S7012 CB/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S7012 CB/P4ADGA Bearing Product Overview & Core Advantages
The S7012 CB/P4ADGA is a high-precision double row angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. Engineered to accommodate combined loads (radial and bidirectional axial loads) simultaneously, its compact design integrates the functionality of two single row bearings. Manufactured to P4A tolerance class and featuring an extra light preload (Class A), this bearing delivers superior rotational precision, high-speed capability, and reliable performance in demanding environments.
S7012 CB/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Basic bearing designation, indicating a double row angular contact ball bearing with a 60 mm bore. |
| CB | Specifies a universal matchable (SU) design. Two CB-designated bearings can be mounted in any combination (face-to-face, back-to-back) to achieve the required rigidity and preload. |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy requirements for both inner and outer rings. |
| DGA | Indicates the bearing is sealed and pre-lubricated with grease, offering protection from contamination and contributing to its maintenance-free characteristics. |
S7012 CB/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design and a 15° contact angle provide superior radial and axial rigidity, enabling the bearing to handle significant combined loads effectively. This makes it ideal for applications requiring stable shaft support under complex loading conditions.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 31,000 rpm. This is essential for high-speed spindles and other precision rotating machinery.
Precision & Longevity: Manufactured to P4A dimensional and running accuracy standards, this bearing ensures minimal vibration and precise rotation. The sealed construction with pre-applied grease protects against contaminants and retains lubrication, resulting in a long service life and reliable, maintenance-free operation within a temperature range of -30°C to 110°C.
S7012 CB/P4ADGA Bearing Typical Application Areas
The S7012 CB/P4ADGA is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Precision Spindles
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
- Medical Equipment and Precision Instruments
