71924 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71924 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The 71924 ACEGA/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered with a 25° contact angle and manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its ceramic ball construction and phenolic cage enable outstanding high-speed capabilities up to 10,000 rpm, while the extra light preload (Class A) ensures minimal friction and optimal rigidity. As a universal matchable bearing, it can be paired with another identical bearing to create precisely matched sets for complex mounting arrangements, making it ideal for applications requiring high rigidity and combined load capacity.
71924 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| EGA | Extra Light Preload (Class A) | Reduced friction, improved high-speed performance |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Enhanced speed capability, reduced weight, electrical insulation |
| P4A | High Precision Tolerance Class | Superior running accuracy and dimensional stability |
71924 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings with silicon nitride ceramic balls provides significant advantages including reduced centrifugal forces, lower operating temperatures, and extended service life at high speeds. The ceramic balls also offer electrical insulation properties and superior corrosion resistance.
Phenolic Cage Design: The phenolic resin cage contributes to the bearing's exceptional high-speed performance through its lightweight properties and excellent dimensional stability under thermal and mechanical stress.
Precision Engineering: Manufactured to P4A tolerance class with tight bearing dimensions (120mm bore, 165mm OD, 22mm width) and controlled preload, this bearing ensures minimal vibration and precise rotational accuracy.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be universally paired in any combination to achieve various preload levels and mounting configurations, providing flexibility in application design.
71924 ACEGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Medical Equipment: Dental handpieces, surgical tools, and medical imaging devices
- Aerospace Systems: Guidance systems, flight control actuators, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages
- High-Speed Motors: CNC spindle motors, high-frequency electric motors
- Precision Instruments: Laboratory equipment, measuring devices, optical systems
