7013 FEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7013 FEGA/HCP4A Bearing Product Overview & Core Advantages
The 7013 FEGA/HCP4A is a single-row angular contact ball bearing engineered for ultra-high precision applications. Manufactured to ABEC 7 / P4A tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its ceramic balls and phenolic cage enable superior high-speed performance, reaching limiting speeds of 32,500 rpm. This bearing is universally matchable (SU), allowing for precise preload control when mounted in pairs to handle combined radial and axial loads efficiently. The extra light preload (Class A) ensures minimal friction and optimal performance in demanding, high-accuracy systems.
7013 FEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 7013 | Basic bearing series and size designation | 65mm bore, 100mm OD, 18mm width |
| FE | Filled with special lubricant | Optimized for high-speed operation |
| GA | Universal matchable bearing set | Can be paired for precise preload control |
| HC | Hybrid ceramic construction | Ceramic balls for reduced weight and higher speed capability |
| P4A | Ultra-precision tolerance class | Exceptional running accuracy and dimensional stability |
7013 FEGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride ceramic balls significantly reduces centrifugal forces, enabling higher rotational speeds while maintaining dimensional stability across the operating temperature range (-30°C to 110°C).
Phenolic Resin Cage: The phenolic cage material provides excellent dimensional stability at high speeds, contributing to the bearing's exceptional limiting speed of 32,500 rpm. This lightweight cage design minimizes inertial forces and ensures smooth operation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), this bearing delivers superior running accuracy and minimal vibration for high-precision applications.
Optimized Load Capacity: With a dynamic load rating of 4,568 lbf and static load rating of 3,442 lbf, the bearing reliably handles combined loads while the 18° contact angle provides excellent axial load capacity.
7013 FEGA/HCP4A Bearing Typical Application Areas
- High-speed machine tool spindles requiring ultra-precision and thermal stability
- Precision grinding equipment where rotational accuracy is critical
- Medical and dental equipment demanding high reliability and speed
- Aerospace instrumentation and navigation systems
- Semiconductor manufacturing equipment requiring contamination-free operation
- High-frequency motor spindles in industrial automation
