7210 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7210 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7210 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 15° contact angle and extra light preload (Class A), making it ideal for applications requiring minimal deflection and high rotational accuracy. Its ceramic ball construction and P4A tolerance class ensure superior performance in high-speed and precision environments.
7210 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined loads and universal mounting flexibility |
| HC | Hybrid ceramic balls | Enhanced speed capability, reduced friction, and longer service life |
| P4A | High precision tolerance class | Exceptional running accuracy and dimensional stability |
| DGA | Pre-lubricated with specific grease | Ready for immediate use with optimized lubrication performance |
7210 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds (46,000 rpm) while maintaining dimensional stability under thermal stress.
Precision Engineering: Manufactured to P4A tolerance class with extra light preload, this bearing delivers minimal runout and superior rotational accuracy for precision applications.
Optimized Cage Design: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at high speeds, contributing to the bearing's exceptional high-speed performance.
Universal Matching Capability: As part of a universal matchable (SU) set, these bearings can be mounted in various configurations (back-to-back, face-to-face, or tandem) to accommodate different load conditions and stiffness requirements.
7210 CD/HCP4ADGA Bearing Typical Application Areas
- Machine tool spindles - High-precision machining centers and grinding spindles
- High-speed motors - Electric motors and generators requiring minimal vibration
- Precision instrumentation - Medical equipment and measuring devices
- Aerospace systems - Guidance systems and auxiliary power units
- Semiconductor manufacturing - Wafer handling robots and precision positioning stages
