S7019 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7019 ACE/P4A Bearing Product Overview & Core Advantages
The S7019 ACE/P4A is a precision single-row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4 (ABEC-7) tolerance class, it offers superior dimensional stability and runout control. Its key advantage lies in its ability to accommodate combined loads—handling significant radial loads alongside thrust loads in one direction—making it an ideal choice for high-rigidity, high-reliability spindle arrangements. The bearing comes preloaded and pre-lubricated, ensuring optimal performance from installation and simplifying machine assembly.
S7019 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACE | 25° Contact Angle, High Rigidity Design | Optimized for high thrust capacity and system stiffness. |
| P4A | P4 (ABEC-7) Tolerance Class | Guarantees ultra-precise running accuracy for high-speed spindles. |
S7019 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction provide excellent resistance to deformation under combined radial and axial loads, ensuring precise tool positioning and minimal deflection.
- Superior High-Speed Performance: The lightweight, durable phenolic resin cage minimizes centrifugal forces and ensures stable operation at the high limiting speed of 11,500 rpm. This is critical for maintaining balance and reducing vibration.
- Precision Engineering: Adherence to P4 tolerance class with tight bore, outer diameter, and width tolerances ensures predictable performance, easy installation, and superior running accuracy.
- Optimized for Performance: The bearing is supplied preloaded, eliminating internal clearance for immediate high-stiffness operation, and is pre-lubricated for long-term, maintenance-free service within its specified temperature range.
S7019 ACE/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Drives: High-frequency motors, servo motors, and robotics arm joints.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
