7015 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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7015 FEGA/P4A Bearing Product Overview & Core Advantages
The 7015 FEGA/P4A is a single-row angular contact ball bearing designed for ultra-precise applications requiring exceptional rotational accuracy and high-speed capability. Manufactured to P4A tolerance class with an extra light preload (Class A), this bearing delivers superior running precision and minimal vibration. Its optimized 18° contact angle provides excellent performance for combined loads, particularly where high axial stiffness is critical. The open design, combined with a phenolic cage, enables superior high-speed performance up to 28,000 rpm, making it an ideal choice for demanding, precision-driven machinery.
7015 FEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Standard bearing series designation indicating metric dimensions (75mm bore, 115mm OD, 20mm width) |
| F | Machined brass cage (Note: This is a common interpretation; the provided spec indicates phenolic cage) |
| E | Optimized internal design for improved performance and load capacity |
| GA | Universal Matchable bearing, can be paired in any combination for preload control |
| P4A | High precision tolerance class with specified running accuracy and dimensional stability |
7015 FEGA/P4A Bearing Structural Features & Performance Benefits
This precision bearing features a single-row angular contact design with a 18° contact angle, engineered to support significant combined radial and axial loads simultaneously. The phenolic resin cage ensures excellent dimensional stability at high speeds while reducing friction and weight. Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), it guarantees exceptional running accuracy and minimal vibration. The extra light preload (Class A) eliminates internal clearance, providing superior rigidity and precise shaft positioning. With 26 high-grade chrome steel balls and optimized internal geometry, it achieves outstanding high-speed capability while maintaining reliable performance across a wide temperature range (-30°C to 110°C).
7015 FEGA/P4A Bearing Typical Application Areas
- Machine tool spindles for high-precision machining centers
- High-speed spindles in grinding and milling applications
- Precision instrumentation and measuring equipment
- Medical equipment requiring high rotational accuracy
- Robotic joints and automation systems
- Aerospace components demanding reliability at high speeds
