S71919 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S71919 ACD/HCP4A Bearing Product Overview & Core Advantages
The S71919 ACD/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously handle combined radial and axial loads, this bearing features a 25° contact angle for optimal thrust capacity. Its compact design, combined with a P4 (ABEC-7) tolerance class and ceramic ball construction, makes it an ideal solution for high-speed and high-rigidity applications where precision is paramount.
S71919 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | High-grade bearing steel |
| 1919 | Standard size designation (95mm bore, 130mm OD, 18mm width) |
| ACD | 25° contact angle, optimized for high-speed operation |
| HC | Hybrid ceramic construction (steel rings with ceramic balls) |
| P4A | ABEC-7 precision class with specific running accuracy requirements |
S71919 ACD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, extends service life, and enables higher operating speeds while maintaining dimensional stability.
High Rigidity & Load Capacity: The angular contact design with 25° contact angle provides excellent resistance to combined loads, offering both radial and axial load capacity in a compact bearing size.
Superior High-Speed Performance: The phenolic cage material and ceramic balls work together to achieve a limiting speed of 10,000 rpm, making this bearing suitable for demanding high-speed applications.
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional controls, ensuring consistent performance and reliability in precision machinery.
Pre-lubricated & Sealed: Factory-lubricated and sealed design provides immediate operation readiness and protection against contamination.
S71919 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding applications
- High-Speed Motors - Electric motors and generators requiring precision and speed
- Medical Equipment - Dental handpieces and surgical tools demanding reliability
- Aerospace Components - Guidance systems and auxiliary power units
- Precision Instruments - Measuring devices and laboratory equipment
- Robotics - High-precision robotic joints and positioning systems
