S7012 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7012 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7012 ACEGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This single bearing features an extra light preload (Class A) and P4A tolerance class, ensuring smooth operation with minimal runout. Its primary advantage lies in its ability to handle combined loads—significant radial loads alongside thrust loads in one direction—thanks to its optimized 25° contact angle. The sealed construction with phenolic cage makes it suitable for high-speed operation up to 31,000 rpm, offering a compact and rigid solution for precision machinery.
S7012 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Basic bearing series, indicating a metric angular contact ball bearing with 60mm bore. |
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU) bearing, supplied in a set of 3 for precise preload adjustment. |
| P4A | High-Precision Tolerance Class, providing extremely tight dimensional and running accuracy. |
S7012 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and 25° contact angle provide high rigidity, enabling the bearing to support substantial combined radial and axial loads (Dynamic: 3668 lbf, Static: 2745 lbf).
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the grease lubrication and sealed design contribute to a high limiting speed of 31,000 rpm.
- Precision & Stability: Manufactured to P4A super-precision tolerances and an extra light preload, this bearing minimizes vibration and heat generation, ensuring stable operation in high-precision applications.
- Long Service Life & Reliability: Constructed from chrome steel for rings and balls, the bearing offers excellent wear resistance. The integral seals protect against contamination, enhancing reliability.
S7012 ACEGA/P4A Bearing Typical Application Areas
The S7012 ACEGA/P4A is ideally suited for high-precision, high-speed machinery where accuracy and rigidity are paramount. Common applications include:
- Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Motors
- Industrial Pumps & Compressors
- Robotic Arm Joints
- Medical & Dental Equipment
- Aerospace Actuation Systems
