7017 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7017 CEGA/P4A Bearing Product Overview & Core Advantages
The 7017 CEGA/P4A is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and is preloaded to Extra Light (Class A) specifications, minimizing deflection under load for enhanced system stability. Its 15° contact angle is optimized to support significant combined loads, efficiently handling both radial and axial forces in one direction. The phenolic resin cage and factory-applied lubrication contribute to its high-speed capabilities, making it an ideal solution for demanding, high-RPM machinery.
7017 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 7017 | Standard bore diameter (85 mm) & series designation. | Standardized bearing dimensions for easy integration. |
| CE | Enhanced internal design with optimized internal geometry. | Improved load capacity and reduced noise/vibration levels. |
| GA | Indicates the bearing is part of a universally matchable (SU) set. | Allows for flexible arrangement in pairs (back-to-back, face-to-face) to support axial loads in both directions without pre-selection. |
| P4A | High precision tolerance class. | Guarantees extremely tight dimensional and running accuracy for superior performance in precision applications. |
7017 CEGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single row design with a Class A preload ensures minimal axial and radial play, providing high system rigidity and precise shaft positioning critical for machine tool spindles.
Superior Load Capacity: The 15° contact angle and robust construction using chrome steel rings and balls provide a high dynamic load rating of 7762 lbf, enabling reliable operation under significant combined radial and axial loads.
High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the factory-applied lubrication ensures optimal performance at high rotational speeds, with a limiting speed of 28,000 rpm.
Universal Matching Capability (SU): As a universally matchable bearing, it can be paired with another identical bearing in any combination (e.g., DB, DF) to create a stiff, preloaded bearing set capable of withstanding axial loads from both directions, simplifying inventory and assembly.
7017 CEGA/P4A Bearing Typical Application Areas
The 7017 CEGA/P4A is designed for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: In robotics, aerospace, and automotive test stands.
- High-Frequency Motors and Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Medical Equipment: Such as high-speed dental handpieces and centrifuges.
