7002 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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7002 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7002 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 15° contact angle and ceramic ball construction, enabling superior performance under combined radial and axial loads. Manufactured to P4A tolerance class, it delivers exceptional dimensional stability and running accuracy. The phenolic cage and optimized design contribute to its high-speed capability with a limiting speed of 95,000 rpm, making it ideal for precision spindles and high-rotation equipment.
7002 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series with 15mm bore diameter |
| CD | 15° contact angle design |
| HC | Hybrid ceramic construction (steel rings with ceramic balls) |
| P4A | High precision tolerance class (superior to ABEC 7) |
| ADGA | Universal matchable in any combination (SU designation) |
7002 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, enabling higher operating speeds while providing excellent electrical insulation properties and extended service life.
High Rigidity & Load Capacity: The angular contact design with 15° contact angle provides optimal support for combined loads, handling both radial forces (1872 lbf dynamic rating) and axial loads simultaneously with minimal deflection.
Superior High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at extreme speeds up to 95,000 rpm, while the open design facilitates efficient lubrication.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring consistent performance and precise positioning in critical applications.
7002 CD/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
- High-Speed Motors: Spindle motors, turbochargers, and precision drive systems
