71913 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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71913 CEGA/HCP4A Bearing Product Overview & Core Advantages
The 71913 CEGA/HCP4A is a single-row angular contact ball bearing engineered for ultra-high precision applications requiring exceptional rotational accuracy and speed capabilities. Manufactured to P4A super precision tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its ceramic ball construction and phenolic cage enable outstanding high-speed performance while maintaining dimensional stability across a wide temperature range. The bearing is universally matchable, allowing for precise preload control when mounted in pairs.
71913 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71913 | Basic bearing designation (65mm bore, 90mm OD, 13mm width) | Standardized bearing dimensions for compatibility |
| CE | 15° contact angle design | Optimized for combined radial and axial loads |
| GA | Extra light preload (Class A) | Minimal friction for high-speed operation |
| HC | Hybrid ceramic balls | Reduced weight, lower centrifugal forces, enhanced speed capability |
| P4A | Super precision tolerance class | Exceptional running accuracy and dimensional stability |
71913 CEGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance in high-speed applications. Ceramic balls offer 60% less density than steel, reducing centrifugal forces and enabling higher limiting speeds up to 32,500 rpm.
Phenolic Cage Design: The phenolic resin cage ensures excellent dimensional stability and low friction operation across the entire temperature range (-30°C to 110°C). This cage material provides superior strength-to-weight ratio and natural lubricity.
Precision Engineering: Manufactured to P4A super precision standards with tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), this bearing delivers exceptional running accuracy and minimal vibration for demanding applications.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be precisely paired to achieve optimal preload conditions, making them ideal for spindle arrangements requiring exact stiffness and running accuracy.
71913 CEGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Medical Equipment: Dental handpieces, surgical tools, and high-speed medical centrifuges
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
- High-Speed Motors: Precision spindles, turbochargers, and specialized drive systems
