S7013 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7013 CB/HCP4A Bearing Product Overview & Core Advantages
The S7013 CB/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 15° contact angle, enabling it to support combined loads—significant radial loads and simultaneous axial loads in one direction. Manufactured to P4 (ABEC-7) tolerance class, it guarantees ultra-precise running tolerances for superior performance. The combination of a ceramic ball material and a phenolic cage contributes to its capabilities as a high-speed bearing, with a limiting speed of 22,000 rpm. Its preloaded design ensures immediate rigidity and minimal axial/radial play, making it ideal for high-reliability, precision machinery.
S7013 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7013 | Standard designation for a 65 mm bore, 100 mm OD, 18 mm width angular contact ball bearing. |
| CB | Specific internal clearance and preload designation for optimized performance under operational conditions. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride), which reduce friction, heat generation, and wear. |
| P4 | Denotes a high-precision tolerance class (ABEC-7), ensuring extremely tight dimensional and running accuracy. |
| A | Specifies a 30° contact angle (standard for this series, though the provided spec indicates 15°). |
S7013 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row design with a controlled contact angle and preload delivers high system rigidity and precise shaft positioning, critical for minimizing deflection under load.
- Superior High-Speed Performance: The hybrid ceramic balls are significantly lighter than steel, reducing centrifugal forces, while the phenolic cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 22,000 rpm.
- Enhanced Load Capacity: With a radial dynamic load rating of 3510 lbf and a radial static load rating of 2902 lbf, this bearing is engineered to handle substantial combined loads effectively.
- Sealed & Lubricated for Long Life: As a sealed bearing that comes pre-lubricated, it is protected from contamination and is ready for immediate use, offering a long service life with minimal maintenance in its specified temperature range of -30° to 110 °C.
S7013 CB/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring utmost precision and rigidity.
- High-Frequency Motors and Spindles: Used in applications where high rotational speeds and low vibration are paramount.
- Precision Robotics: In robot arm joints and gears where accuracy, speed, and reliability are critical.
- Aerospace & Defense Systems: For gyroscopes, radar systems, and other instrumentation demanding high precision and reliability.
