S71916 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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S71916 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71916 ACE/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. This metric system bearing features a 25° contact angle and is designed to accommodate combined radial and axial loads simultaneously from both directions. Its compact double-row design provides high rigidity and stable rotational characteristics. Manufactured to a P4A tolerance class and preloaded to Extra Light (Class A), it is ideally suited for high-speed operation up to 28,000 rpm, making it a superior choice for demanding precision machinery.
S71916 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and specific internal design optimized for high-speed performance and load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls, which are lighter and harder than steel, reducing centrifugal force and enabling higher speeds. |
| P4A | Denotes an ABEC 7 / ISO P4 precision class with enhanced running accuracy and dimensional stability. |
| DGA | Specifies a Phenolic (polyamide) cage, which offers excellent strength-to-weight ratio, low friction, and is ideal for high-speed applications. |
S71916 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides superior radial and axial stiffness, enabling the bearing to handle significant combined loads and moment loads effectively.
- Ultra-High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage (DGA) minimizes centrifugal forces and friction, allowing for a high limiting speed of 28,000 rpm.
- Exceptional Precision: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter (80 mm), outside diameter (110 mm), and width (32 mm), ensuring smooth and precise operation.
- Universal Matchability (SU): Bearings are universally matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to optimize system performance and preload.
- Pre-Lubricated & Sealed: The bearing comes sealed and pre-lubricated with grease, protecting against contamination and providing reliable operation within a temperature range of -30°C to 110°C.
S71916 ACE/HCP4ADGA Bearing Typical Application Areas
The S71916 ACE/HCP4ADGA is designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Medical Equipment: Dental handpieces, centrifuges, and imaging devices.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units (APUs).
- High-Frequency Motors & Spindles: Where extreme rotational accuracy and minimal runout are required.
