71910 CE/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71910 CE/P4A Bearing Product Overview & Core Advantages
The 71910 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial in one direction), this bearing features a P4 (ABEC-7) tolerance class for superior running accuracy. Its phenolic cage and optimized internal geometry contribute to stable performance at high speeds, making it an ideal solution for machine tool spindles and other precision machinery where high rigidity and minimal runout are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series with 50mm bore diameter |
| CE | Contact angle of 15° and optimized internal design |
| P4A | P4 tolerance class (ABEC-7) with specific dimensional accuracy |
71910 CE/P4A Bearing Structural Features & Performance Benefits
High Precision Design: Manufactured to P4 tolerance class with strict dimensional control, ensuring minimal vibration and superior running accuracy for precision applications.
Optimized Internal Geometry: Features a 15° contact angle that provides excellent axial load capacity while maintaining good radial load performance.
High-Speed Capability: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 40,000 rpm, reducing centrifugal forces and maintaining stability.
Superior Load Capacity: With a dynamic load rating of 2858 lbf and static load rating of 1912 lbf, this bearing delivers reliable performance under demanding operating conditions.
Precision Materials: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and dimensional stability across the operating temperature range of -30° to 110°C.
71910 CE/P4A Bearing Typical Application Areas
- Machine tool spindles and high-speed machining centers
- Precision grinding spindles and dental equipment
- High-frequency motors and servo drives
- Aerospace instrumentation and navigation systems
- Semiconductor manufacturing equipment and robotic actuators
