S7014 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7014 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The S7014 CD/HCP4ADBA is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This matched set features a back-to-back (DB) arrangement with an extra light preload (Class A), delivering superior running accuracy and system rigidity. Its construction with ceramic balls and a phenolic cage enables outstanding high-speed performance and thermal stability, making it ideal for machine tool spindles and other high-precision machinery where combined loads and minimal deflection are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7014 | Basic bearing designation, indicating a 70mm bore, 110mm OD, and 40mm width. |
| C | 15° contact angle. |
| D | Duplex (two bearings supplied as a set). |
| HC | Hybrid Ceramic (silicon nitride ceramic balls). |
| P4A | High precision tolerance class (equivalent to ABEC 7). |
| A | Specific preload designation: Extra light preload. |
| DB | Matched arrangement: Back-to-Back. |
| Sealed / Grease | The bearing is sealed and pre-lubricated with grease. |
S7014 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & 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 handle significant combined radial and axial loads simultaneously.
Superior High-Speed Performance: The use of ceramic (silicon nitride) balls significantly reduces centrifugal forces, lowers operating temperature, and minimizes friction. Combined with the lightweight, high-strength phenolic cage, this enables a very high limiting speed of 22,000 rpm.
Enhanced Precision & Longevity: Manufactured to a P4A tolerance class, this bearing ensures minimal runout and vibration for superior running accuracy. The sealed design with factory-applied grease lubrication protects against contamination and provides reliable, long-term operation within a temperature range of -30°C to 110°C.
S7014 CD/HCP4ADBA Bearing Typical Application Areas
This high-performance bearing set is engineered for the most demanding applications, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Robotic Arm Rotary Joints
- High-Speed Pumps and Compressors
