7014 CEGA/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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7014 CEGA/P4A Bearing Product Overview & Core Advantages
The 7014 CEGA/P4A is a single-row angular contact ball bearing manufactured to ultra-precision P4A tolerance class. Engineered for applications demanding exceptional rotational accuracy and high-speed performance, this bearing features an extra light preload (Class A) and is universally matchable (SU designation), allowing for precise axial positioning and optimal rigidity in multi-bearing arrangements. Its 15° contact angle is optimized to support significant combined loads (radial and axial), making it a superior choice for high-precision spindles and machinery.
7014 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series, defining the standard dimensions: 70mm bore, 110mm OD, 20mm width. |
| CE | Designates a 15° contact angle and specific internal geometry for optimized performance. |
| GA | Indicates the bearing is supplied with an extra light preload (Class A). |
| P4A | Specifies the ultra-precision tolerance class, exceeding ABEC 7 standards for minimal runout and vibration. |
7014 CEGA/P4A Bearing Structural Features & Performance Benefits
The performance of the 7014 CEGA/P4A is derived from its advanced construction and material selection:
- High Rigidity & Precision: The phenolic resin cage ensures dimensional stability and low friction at high speeds, while the P4A tolerance class guarantees exceptional running accuracy for demanding applications.
- Superior Load Capacity: The 15° contact angle and high-grade chrome steel construction enable it to handle significant combined radial and axial loads efficiently.
- Optimized High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 27,000 rpm, making it ideal for spindle applications.
- Universal Matching Capability (SU): This bearing is manufactured to universal matching standards, allowing multiple bearings to be mounted together in various arrangements (e.g., back-to-back, face-to-face) to achieve the desired system rigidity and preload without selective matching.
7014 CEGA/P4A Bearing Typical Application Areas
The 7014 CEGA/P4A is designed for high-precision, high-speed machinery where accuracy and reliability are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and high-accuracy rotary tables.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
