S71913 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71913 CD/HCP4A Bearing Product Overview & Core Advantages
The S71913 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class, ceramic ball material, and availability with a preload. Its design is optimized to handle combined loads, providing high rigidity and superior high-speed performance, making it an ideal choice for high-reliability and precision machinery.
S71913 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Indicates a series of high-precision, super-precision angular contact ball bearings. |
| 1913 | Specifies the bearing dimensions: 65mm bore, 90mm outside diameter, 13mm width. |
| CD | Signifies a matched arrangement with a specific, high contact angle (15°) for optimized axial load capacity and rigidity. |
| HC | Denotes the use of a phenolic (polyamide) cage, which is lightweight and suitable for high-speed operation. |
| P4A | Specifies the tolerance class P4 (ABEC-7), indicating extremely tight dimensional and running accuracy. |
S71913 CD/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to a P4 tolerance class with a 15° contact angle, this bearing provides superior rotational accuracy and system stiffness, minimizing deflection under load.
Enhanced High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 17,000 rpm. This makes it an excellent high-speed bearing.
Superior Load Capacity: The optimized internal geometry and ceramic ball material contribute to its high dynamic and static load ratings, reliably handling combined radial and axial loads.
Sealed and Lubricated Design: As a sealed bearing that is pre-lubricated, it is protected from contamination and is ready for immediate use, offering long-term, maintenance-free operation within its specified temperature range.
S71913 CD/HCP4A Bearing Typical Application Areas
The S71913 CD/HCP4A is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Robotic Drives
- Medical and Dental Equipment
- Aerospace Actuators and Instrumentation
