7013 FEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7013 FEGA/P4A Bearing Product Overview & Core Advantages
The 7013 FEGA/P4A is a single row angular contact ball bearing engineered for applications demanding ultra-high precision and superior running accuracy. Manufactured to P4A tolerance class, this bearing delivers exceptional dimensional stability and rotational precision. Its 18° contact angle is optimized to support significant combined loads, efficiently handling both radial and axial forces in one direction. The extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for high-speed spindles and precision machinery where rigidity and minimal runout are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series and size designation (65mm bore, 100mm OD, 18mm width) |
| FE | Optimized internal geometry for improved performance and load distribution |
| GA | Universal Matchable bearing; can be paired in specific arrangements (SU designation) |
| P4A | Super precision tolerance class exceeding ABEC 7 standards |
7013 FEGA/P4A Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 18° contact angle and robust chrome steel construction provide excellent combined load capacity, with dynamic radial load rating of 4568 lbf and static radial load rating of 3442 lbf.
High-Speed Performance: The phenolic resin cage and optimized internal design enable a limiting speed of 36,000 rpm, making it suitable for high-speed applications.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be precisely paired in sets of 2 to create pre-loaded bearing arrangements without selective matching.
Superior Material Quality: Constructed from high-grade chrome steel for rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
7013 FEGA/P4A Bearing Typical Application Areas
The 7013 FEGA/P4A is specifically designed for high-precision, high-speed applications including:
- Machine Tool Spindles - High-speed milling and grinding spindles requiring ultra-precision
- Precision Robotics - Joint and arm mechanisms demanding high accuracy and rigidity
- Medical Equipment - Dental handpieces and surgical tool drives
- Aerospace Systems - Guidance systems and instrumentation requiring exceptional precision
- High-Speed Motors - Spindle motors and high-RPM drive systems
- Measuring Instruments - Coordinate measuring machines and precision metrology equipment
