7018 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7018 CEGA/P4A Bearing Product Overview & Core Advantages
The 7018 CEGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running precision and dimensional stability. Its 15° contact angle and extra light preload (Class A) make it ideally suited for handling combined loads, providing excellent performance in high-speed spindles and precision machinery where minimal deflection and high reliability are critical.
7018 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| CEGA | Optimized internal geometry for high-speed operation and reduced torque | Enhanced high-speed performance and efficiency |
| P4A | High precision tolerance class (superior to ABEC 7) | Exceptional running accuracy and dimensional stability |
7018 CEGA/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: The P4A tolerance class ensures minimal runout and vibration, while the optimized internal geometry provides superior stiffness for demanding applications.
High-Speed Capability: Featuring a phenolic resin cage and optimized internal design (CEGA), this bearing achieves a limiting speed of 15,000 rpm, making it suitable for high-speed spindle applications.
Combined Load Capacity: The 15° contact angle enables efficient handling of both radial and axial loads simultaneously, providing versatile performance in complex loading conditions.
Universal Matching: Designed as Universal Matchable (SU), these bearings can be supplied in pre-matched sets (typically 3 bearings) to achieve specific preload and stiffness requirements without selective mounting.
7018 CEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Robotics: High-accuracy robotic arms and joints
- Medical Equipment: Dental handpieces, surgical tools, and imaging systems
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- High-Frequency Motors: Spindle motors and high-RPM drive systems
