S71910 CD/HCP4ADBC
Hybrid Ceramic Super Precision Bearings
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S71910 CD/HCP4ADBC Bearing Product Overview & Core Advantages
The S71910 CD/HCP4ADBC is a precision duplex angular contact ball bearing designed for high-performance applications requiring exceptional rigidity and speed. This matched set features a back-to-back (DB) arrangement with a moderate preload (Class C), enabling it to handle combined radial and axial loads from both directions simultaneously. Manufactured to a P4A tolerance class with ceramic balls and a phenolic cage, it delivers superior running accuracy, high stiffness, and extended service life in demanding operational environments.
S71910 CD/HCP4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71910 | Precision angular contact ball bearing series with a 50 mm bore diameter. |
| C | 15° contact angle. |
| D | The bearing is part of a duplex (matched) set. |
| HC | Hybrid Ceramic: Features ceramic balls and steel rings. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4. |
| DB | Back-to-Back arrangement of the matched set. |
| Sealed / Grease | The bearing is sealed and pre-lubricated with grease, offering protection and long-term, maintenance-free operation. |
S71910 CD/HCP4ADBC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and provides exceptional stiffness. This configuration allows the bearing set to accommodate significant combined loads.
Superior High-Speed Performance: The combination of lightweight ceramic balls, a phenolic cage, and a 15° contact angle minimizes centrifugal forces and friction, enabling a high limiting speed of 34,000 rpm. This makes it an ideal high-speed bearing.
Enhanced Durability and Longevity: Hybrid ceramic construction reduces wear, provides electrical insulation, and offers superior performance in lubricant-starved conditions. The integral seals retain grease and protect against contamination, ensuring reliable, maintenance-free operation.
Precision Operation: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications demanding high rotational accuracy.
S71910 CD/HCP4ADBC Bearing Typical Application Areas
This high-precision, high-speed bearing set is engineered for advanced machinery where accuracy, rigidity, and speed are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Spindles for PCB drilling and routing
- High-Frequency Motors and Servo Drives
- Robotic Arm Joints and Precision Gearboxes
- Medical Equipment and Dental Handpieces
- Aerospace Actuation Systems
