71901 ACEGA/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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71901 ACEGA/P4A Bearing Product Overview & Core Advantages
The 71901 ACEGA/P4A is a single-row angular contact ball bearing designed for applications demanding ultra-high precision and exceptional rotational accuracy. Manufactured to ABEC 7/P4A tolerance class, this bearing delivers superior performance in high-speed spindle applications. Its 25° contact angle provides optimal axial load capacity while maintaining excellent radial load handling. The universal matching (SU) capability allows for precise preload control when mounted in pairs, making it ideal for machine tool spindles and other precision equipment requiring high rigidity and minimal runout.
71901 ACEGA/P4A 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) | Minimal friction, ideal for high-speed operation |
| P4A | ABEC 7 Precision Tolerance | Ultra-precise dimensions for superior running accuracy |
71901 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation, providing exceptional running accuracy and reduced vibration levels. The phenolic resin cage offers excellent dimensional stability and reduced friction at high speeds.
High-Speed Capability: With a limiting speed of 140,000 rpm, this bearing is engineered for demanding high-speed applications. The optimized contact angle of 25° and extra light preload configuration minimize heat generation while maintaining stiffness.
Superior Load Capacity: The chrome steel construction and precision-ground raceways deliver a dynamic load rating of 457 lbf and static load rating of 191 lbf. The angular contact design efficiently handles combined radial and axial loads in high-speed environments.
Temperature Performance: Operating temperature range of -30°C to 110°C ensures reliable performance across various environmental conditions.
71901 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring ultra-precise rotational accuracy
- High-Speed Motors: Spindle motors and high-frequency applications demanding exceptional speed capabilities
- Precision Instruments: Measuring equipment, optical instruments, and laboratory apparatus
- Dental Handpieces: Medical drilling equipment requiring high-speed operation with minimal vibration
- Aerospace Components: Guidance systems and precision mechanisms requiring reliable high-speed performance
