S71916 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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S71916 ACE/HCP4A Bearing Product Overview & Core Advantages
The S71916 ACE/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (simultaneous radial and axial loads), this single-row bearing features a 25° contact angle for optimal axial load capacity. Its construction with ceramic balls and a phenolic cage enables superior high-speed operation and reduced rotational mass. Preloaded and supplied with high-performance grease, it is a ready-to-install solution for high-rigidity and high-reliability systems.
S71916 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Designates a super-precision bearing series. |
| 7 | Indicates an angular contact ball bearing design. |
| 1916 | Specifies the bearing dimensions: 80mm bore, 110mm OD, 16mm width. |
| ACE | Signifies a 25° contact angle and specific internal design optimizations. |
| HC | Denotes the use of hybrid ceramic balls (silicon nitride). |
| P4 | Identifies the tolerance class (ABEC-7), ensuring extremely tight dimensional and running accuracy. |
| A | Indicates the bearing is supplied with a preload for immediate high rigidity. |
S71916 ACE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The use of ceramic balls significantly reduces weight and inertia, lowers operating temperature, and provides electrical insulation. This directly contributes to a higher limiting speed and extended service life, especially in high-speed applications.
Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high rotational speeds, further enhancing the bearing's high-speed performance and reliability.
Super-Precision P4 Tolerance: Manufactured to ABEC-7 (P4) class standards, this bearing guarantees minimal runout and vibration, which is critical for applications demanding extreme rotational accuracy and smooth operation.
Optimized Contact Angle: The 25° contact angle is engineered to provide an excellent balance between radial and axial load capacity, making it ideal for applications with significant thrust loads.
S71916 ACE/HCP4A Bearing Typical Application Areas
The S71916 ACE/HCP4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and high-accuracy positioning systems.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and auxiliary power units.
- High-Frequency Motors and Spindles: Where minimal vibration and high rotational accuracy are required.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
