S71916 ACB/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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S71916 ACB/HCP4ADGA Bearing Product Overview & Core Advantages
The S71916 ACB/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This double row angular contact ball bearing features a universal matchable (SU) design, allowing two bearings to be mounted in any combination to achieve the required preload. Its ceramic balls and phenolic cage contribute to superior high-speed performance and high rigidity, enabling it to handle combined radial and axial loads simultaneously. The sealed construction and pre-lubrication ensure long-term, maintenance-free operation in a wide temperature range.
S71916 ACB/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact ball bearings |
| 1916 | Bore diameter: 80 mm, Outside diameter: 110 mm, Width: 32 mm |
| ACB | Contact angle of 25° |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) |
| P4A | High precision class with enhanced running accuracy |
| DGA | Sealed on both sides and pre-lubricated with grease |
S71916 ACB/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness, making it ideal for applications with high moment loads. With a 25° contact angle, it efficiently supports combined loads (radial and bidirectional axial loads). The universal matchable (SU) feature allows for precise preload adjustment when mounted in pairs.
High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage enables significantly higher limiting speeds (28,000 rpm) compared to all-steel equivalents, reducing friction and heat generation.
Maintenance-Free Operation: The integrated seals (DGA) effectively protect against contamination, while the pre-applied grease ensures consistent lubrication across the specified temperature range (-30°C to 110°C), resulting in extended service life with minimal maintenance.
S71916 ACB/HCP4ADGA Bearing Typical Application Areas
This bearing is engineered for high-performance machinery where precision, speed, and reliability are critical. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Instrumentation: In medical devices, optical scanners, and measuring equipment.
- High-Frequency Motors & Spindles: Used in CNC routers, PCB drilling machines, and electric motors.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and auxiliary power units.
