7006 FEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7006 FEGA/P4A Bearing Product Overview & Core Advantages
The 7006 FEGA/P4A is a single-row angular contact ball bearing designed for applications requiring ultra-high precision and exceptional rotational accuracy. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 18° contact angle is optimized to handle significant combined loads (radial and axial) simultaneously. The bearing comes pre-lubricated and is universally matchable (SU), allowing for precise axial preload adjustment when mounted in pairs. This makes it an ideal solution for high-speed spindles and other demanding machinery where high rigidity and minimal runout are critical.
7006 FEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series and size designation (30mm bore, 55mm OD, 13mm width). |
| FE | Designates a universally matchable (SU) bearing. Two such bearings can be paired in a back-to-back (DB) or face-to-face (DF) arrangement to support combined loads. |
| GA | Indicates a specific preload level. In this case, Extra Light (Class A) preload, which minimizes friction and heat generation for high-speed operation. |
| /P4A | Specifies the tolerance class. P4A represents very high precision, with tight controls on bore, outer diameter, and width tolerances for superior running accuracy. |
7006 FEGA/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Built to P4A tolerance class with a phenolic cage, this bearing ensures minimal vibration and high running accuracy. The 18° contact angle provides excellent stiffness against combined loads, making it suitable for applications requiring precise shaft positioning.
- Superior Load Capacity: With a dynamic load rating of 2077 lbf and a static load rating of 1170 lbf, it reliably handles both radial and axial forces encountered in high-performance machinery.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the extra light preload (GA) minimizes friction. This combination enables a high limiting speed of 100,500 rpm.
- Universal Matching Capability (SU): The FE suffix indicates that bearings are universally matchable. When mounted in pairs (a set of 2), they can be precisely adjusted to achieve the required axial preload, simplifying installation and optimizing system performance.
- Wide Operating Range: Constructed from chrome steel for rings and balls, the bearing operates effectively within a temperature range of -30°C to 110°C.
7006 FEGA/P4A Bearing Typical Application Areas
The 7006 FEGA/P4A is engineered for high-precision, high-speed applications across various industries, including:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and high-speed milling heads.
- Precision Instrumentation: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Robotics: High-accuracy joints and arm assemblies.
- Aerospace & Defense: Gyroscopes, navigation systems, and other critical control mechanisms.
