7012 FEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7012 FEGA/P4A Bearing Product Overview & Core Advantages
The 7012 FEGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 18° contact angle and extra light preload (Class A) make it ideal for handling combined loads—simultaneously supporting significant radial loads and axial loads in one direction. The phenolic cage contributes to its high-speed capability, with a limiting speed of 35,000 rpm. As part of a universal matchable (SU) pair, it enables precise preload control when mounted with a matched bearing, ensuring optimal rigidity and minimal runout in high-precision systems.
7012 FEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| FEGA | Extra Light Preload (Class A) | Minimizes friction and heat generation, ideal for high-speed applications while maintaining precise shaft positioning |
| P4A | High Precision Tolerance Class | Provides exceptional running accuracy and dimensional stability for precision machinery |
7012 FEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high rotational speeds, supporting the bearing's 35,000 rpm limiting speed while reducing centrifugal forces.
Superior Load Capacity: With a radial dynamic load rating of 3,780 lbf and radial static load rating of 2,858 lbf, this bearing efficiently handles combined radial and axial loads through its optimized 18° contact angle design.
Universal Matching Design: As a Universal Matchable (SU) bearing supplied in sets of 2, it enables precise preload adjustment when mounted with a matched counterpart, delivering optimal system rigidity and minimal deflection.
7012 FEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines requiring exceptional running accuracy
- High-Speed Motors: Precision electric motors, spindle motors, and high-frequency applications demanding stable operation at elevated speeds
- Precision Instrumentation: Measuring equipment, optical systems, and laboratory instruments where minimal runout and vibration are critical
- Aerospace Components: Guidance systems, gyroscopes, and aircraft instrumentation requiring reliable performance under combined loads
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
