71910 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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71910 CD/HCP4A Bearing Product Overview & Core Advantages
The 71910 CD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Designed to accommodate combined loads (radial and axial loads in one direction), this bearing features a 15° contact angle for optimal axial load capacity. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, while the ceramic ball and phenolic cage construction enable outstanding high-speed performance with minimal friction and thermal expansion.
71910 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing designation indicating ultra-light series with 50mm bore diameter |
| CD | Contact angle designation (15°) optimized for high-speed operation |
| HC | Hybrid ceramic construction featuring ceramic balls for enhanced performance |
| P4A | P4 tolerance class (ABEC-7) with specific accuracy requirements |
71910 CD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance in high-speed applications, reducing friction, heat generation, and wear.
Phenolic Resin Cage: The lightweight phenolic cage offers excellent dimensional stability at high temperatures and speeds, contributing to the bearing's limiting speed of 34,000 rpm.
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional controls (bore tolerance: -0.006mm to 0), ensuring minimal runout and vibration for precision applications.
Optimized Contact Angle: The 15° contact angle provides an ideal balance between radial and axial load capacity, making it suitable for applications requiring combined load support.
71910 CD/HCP4A Bearing Typical Application Areas
- Machine tool spindles requiring high precision and speed
- High-speed machining centers and CNC equipment
- Precision medical equipment and dental handpieces
- Aerospace components and instrumentation
- Robotics and automation systems demanding accuracy and reliability
- Semiconductor manufacturing equipment
