S7015 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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S7015 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S7015 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. This single-row bearing is distinguished by its P4A super-precision tolerance class and ceramic ball construction, enabling superior performance in high-speed spindle systems. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting combined radial and axial loads. Preloaded to Extra Light (Class A) standards, it ensures minimal runout and high rotational accuracy, making it ideal for machine tools and other high-reliability precision equipment.
S7015 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Basic bearing series and size designation (75mm bore, 115mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Universal Matchable (SU) bearing, supplied in a set of 3 for precise preload arrangement. |
| HC | Hybrid Ceramic construction, featuring ceramic balls for reduced weight, lower friction, and higher speed capability. |
| P4A | Super Precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
S7015 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces, enabling a high limiting speed of 22,000 rpm. This makes it a premier choice for high-speed spindle bearings.
- Enhanced Rigidity and Load Capacity: The 25° contact angle and robust internal geometry provide high axial and radial stiffness. With a dynamic load rating of 11,115 lbf and a static load rating of 10,462 lbf, it reliably handles combined loads.
- Super-Precision Operation: Manufactured to P4A tolerance class with an Extra Light preload, this bearing ensures minimal vibration, superior running accuracy, and extended service life in precision applications.
- Sealed & Pre-Lubricated: The sealed design with pre-applied grease protects against contamination and provides reliable lubrication within the specified temperature range of -30°C to 110°C, ensuring long-term, maintenance-free operation.
S7015 ACDGA/HCP4A Bearing Typical Application Areas
The S7015 ACDGA/HCP4A is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling spindles.
- High-Speed Motors: Spindles for PCB drilling and routing.
- Precision Instrumentation: Medical devices, optical scanners, and coordinate measuring machines.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
