S7019 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
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S7019 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7019 ACEGA/P4A is a high-precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered with Extra Light (Class A) preload and manufactured to P4A tolerance class, this bearing delivers superior rotational accuracy and system rigidity. Its compact double-row design enables it to simultaneously handle significant combined loads—both radial and bidirectional axial loads—making it an ideal solution for high-performance machinery requiring high rigidity and precise shaft guidance.
S7019 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACEGA | 25° contact angle, Extra Light preload (Class A), Universal Matchable | Optimized for axial load capacity and minimal deflection; bearings can be universally paired for precise preload control |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability for precision applications |
| Sealed | Integrated sealing | Contaminant protection and lubricant retention for extended service life |
S7019 ACEGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design with 25° contact angle provides exceptional stiffness and enables the bearing to handle substantial combined loads—radial loads up to 9,360 lbf dynamic rating and bidirectional axial loads simultaneously.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore: -0.004mm to 0, OD: -0.004mm to 0), ensuring minimal runout and vibration for smooth operation in precision applications.
Optimized High-Speed Capability: The phenolic cage and precision-ground chrome steel balls (12.7mm diameter, 26 count) contribute to stable operation at limiting speeds up to 15,000 rpm with reduced friction and heat generation.
Maintenance-Free Operation: Factory-sealed construction with pre-lubricated grease provides long-term protection against contamination and ensures consistent performance across the operating temperature range of -30°C to 110°C.
S7019 ACEGA/P4A Bearing Typical Application Areas
The S7019 ACEGA/P4A precision bearing is ideally suited for demanding applications including:
- Machine tool spindles and high-precision machining centers
- High-speed industrial pumps and compressors
- Precision instrumentation and measuring equipment
- Medical equipment requiring high accuracy and reliability
- Robotic systems and automation equipment
- Aerospace components and navigation systems
