71910 CEGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Product Overview and Core Advantages
The 71910 CEGA/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle provides optimal performance for combined loads, efficiently handling both radial and axial forces. The phenolic cage and universal matching capability make it ideal for precision spindle arrangements where high-speed operation and thermal stability are critical requirements.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71910 | Basic bearing designation (50mm bore, 72mm OD) | Standardized dimension reference |
| CE | Contact angle: 15° | Optimized for combined radial and axial loads |
| GA | Preload: Extra light (Class A) | Minimal friction, ideal for high-speed applications |
| P4A | Tolerance class: High precision | Exceptional running accuracy and dimensional stability |
Structural Features and Performance Benefits
Precision Engineering: The 71910 CEGA/P4A features chrome steel rings and balls with P4A tolerance classification, ensuring minimal dimensional variation and superior running accuracy. The phenolic resin cage provides excellent dimensional stability at high speeds while reducing friction and weight.
Load Capacity Optimization: With a 15° contact angle and 21 precision balls of 7.144mm diameter, this bearing achieves optimal load distribution. The radial dynamic load rating of 2858 lbf and static load rating of 1912 lbf demonstrate its capability to handle significant combined loads.
High-Speed Performance: The phenolic cage and extra light preload (Class A) enable exceptional high-speed operation up to 46,000 rpm. The open design allows for efficient lubrication management, critical for maintaining performance at elevated speeds.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be paired in various configurations (back-to-back, face-to-face, or tandem) to create optimized bearing systems for specific application requirements.
71910 CEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Spindle motors, high-frequency motors, and precision drive systems
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Robotics and Automation: Precision robotic joints, CNC positioning systems, and automated assembly equipment
