71912 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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71912 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 71912 CE/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 P4A tolerance class and ceramic ball construction, delivering superior high-speed capability and extended service life. Its 15° contact angle and extra light preload (Class A) configuration make it ideal for applications requiring minimal friction and precise rotational accuracy under combined radial and axial loads.
71912 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71912 | Basic bearing series and size designation |
| CE | Contact angle of 15° |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
| DGA | Universal matchable (SU) designation |
71912 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of ceramic balls with chrome steel rings significantly reduces friction and wear, enabling higher limiting speeds (31,000 rpm) and improved performance in demanding conditions.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and consistent performance in 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 superior high-speed performance.
Universal Matchability: As an SU-type bearing, it can be universally matched with other identical bearings in any combination, simplifying installation and providing flexibility in bearing arrangement design.
71912 CE/HCP4ADGA Bearing Typical Application Areas
- Machine tool spindles requiring high precision and speed
- High-speed machining centers and precision grinding equipment
- Medical equipment such as dental handpieces and surgical tools
- Aerospace components including gyroscopes and navigation systems
- Semiconductor manufacturing equipment requiring ultra-clean operation
- Robotic joints and precision automation systems
