7013 CE/P4AQGA
7000 Series Super Precision Angular Contact Ball Bearings
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7013 CE/P4AQGA Bearing Product Overview & Core Advantages
The 7013 CE/P4AQGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to a P4A tolerance class, it is a universal matchable (SU) bearing, allowing for flexible mounting in sets to achieve optimal preload and system rigidity. Its extra light preload (Class A) and 15° contact angle make it exceptionally suitable for high-speed operation while accommodating combined radial and axial loads. Manufactured from high-grade chrome steel and featuring a phenolic cage, this bearing is pre-lubricated for immediate use and reliable operation within a wide temperature range.
7013 CE/P4AQGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing designation indicating a metric series, 65mm bore, 100mm OD, and 72mm width. |
| CE | Indicates a 15° contact angle and enhanced internal design for optimized performance. |
| P4A | Denotes a high precision tolerance class, exceeding ABEC 7 standards, for applications requiring minimal runout and vibration. |
| QGA | Signifies a combination of features: Universal Matchable (SU), Extra Light Preload (Class A), and pre-lubrication. |
7013 CE/P4AQGA Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 15° contact angle provides an excellent balance between radial load capacity and axial load capacity in one direction, making it ideal for combined loads.
High-Speed Capability: The lightweight phenolic cage and precision-ground components contribute to low friction and high rotational accuracy, enabling a limiting speed of 31,000 rpm.
Precision and Rigidity: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and high system stiffness. The universal matchable (SU) design allows bearings to be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve the desired preload and rigidity without selective assembly.
Ready-to-Install: The bearing is pre-lubricated, facilitating immediate installation and ensuring reliable initial operation across its specified temperature range.
7013 CE/P4AQGA Bearing Typical Application Areas
- Machine Tool Spindles: For high-precision milling, grinding, and turning centers requiring high speed and rigidity.
- High-Frequency Motors and Spindles: Where low vibration and thermal stability are critical.
- Precision Instrumentation: In applications such as coordinate measuring machines and optical scanners.
- Aerospace and Defense Systems: For gyroscopes, radar systems, and other high-reliability rotating assemblies.
