S71910 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71910 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S71910 ACEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed, single bearing features a universal matchable (SU) design, allowing for flexible mounting in preloaded pairs to achieve optimal rigidity. Its construction with a phenolic cage and ceramic balls enables superior high-speed performance and extended service life. Engineered to handle combined loads (radial and axial), it is ideal for high-reliability scenarios where precision and high rigidity are paramount.
Model Code Breakdown
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| S71910 | Bearing series and size designation | Defines the bearing dimensions (50mm bore, 72mm OD, 12mm width) |
| AC | 25° Contact Angle | Optimized for handling axial loads and providing high rigidity |
| EGA | Sealed on both sides, Grease lubricated | Provides contamination protection and is maintenance-free |
| HCP4A | P4A Tolerance Class, Universal Matchable | Guarantees ultra-high precision and allows for simplified mounting in preloaded arrangements |
S71910 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The 25° contact angle and robust internal geometry are engineered to provide high rigidity, effectively supporting combined radial and axial loads.
Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-friction ceramic balls significantly reduces centrifugal forces and heat generation, enabling a high limiting speed of 34,000 rpm.
Maintenance-Free Operation: The integral seals and factory-applied grease lubrication create a sealed-for-life system, protecting against contaminants and eliminating the need for re-lubrication within the specified temperature range of -30°C to 110°C.
Ultra-Precision: Manufactured to P4A tolerance class with tight dimensional control on the bore, outside diameter, and width, this bearing ensures minimal runout and vibration for exceptional rotational accuracy.
S71910 ACEGA/HCP4A Bearing Typical Application Areas
The S71910 ACEGA/HCP4A is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Actuators and Control Systems
