71802 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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71802 CD/HCP4 Bearing Product Overview & Core Advantages
The 71802 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed performance. Its defining characteristic is the 15° contact angle, which is optimized to support significant combined loads—handling both radial and axial forces simultaneously. Manufactured to the stringent P4 (ABEC-7) tolerance class, it ensures exceptional running accuracy and rotational stability. The combination of a ceramic ball material and a phenolic cage contributes to its suitability for high-velocity operation, offering reduced weight and superior performance under demanding conditions.
71802 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 71802 | The basic bearing designation, indicating a metric, single-row angular contact bearing with a 15 mm bore. |
| CD | Indicates a high contact angle (15°) and optimized internal geometry for high rigidity and load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls, which reduce friction and weight, enabling higher speeds and longer service life. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7, ensuring ultra-precise dimensional and running accuracy. |
71802 CD/HCP4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized 15° contact angle and robust internal design provide high rigidity, enabling the bearing to effectively handle combined radial and axial loads.
- Superior High-Speed Performance: The lightweight phenolic resin cage and hybrid ceramic balls significantly reduce centrifugal forces, allowing for a high limiting speed of 110,000 rpm. This combination minimizes friction and heat generation.
- Precision Engineering: Manufactured to a P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme accuracy.
- Optimized for Preload: The bearing is supplied with a preload, enhancing system stiffness and rotational accuracy from the moment of installation.
71802 CD/HCP4 Bearing Typical Application Areas
The 71802 CD/HCP4 is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- High-Frequency Spindles for PCB drilling and precision machining
- High-Speed Motors and turbo-molecular pumps
- Precision Instrumentation and medical devices
- Aerospace auxiliary systems and instrumentation
