7011 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7011 CEGA/P4A Bearing Product Overview & Core Advantages
The 7011 CEGA/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class with an extra light preload (Class A), this bearing delivers superior running precision and minimal vibration. Its 15° contact angle is optimized for handling combined loads, particularly thrust loads in one direction, while maintaining high-speed capability up to 34,000 rpm. The universal matching (SU) design allows for flexible mounting arrangements in sets, making it ideal for demanding spindle applications where precise axial positioning and stiffness are critical.
7011 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing series: Light series, 55mm bore, 90mm OD, 18mm width |
| CE | Contact angle of 15° and optimized internal design |
| GA | Universal matching bearing for flexible arrangement in sets |
| P4A | High precision tolerance class with extra light preload |
7011 CEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), ensuring minimal runout and vibration for high-precision applications.
Optimized Internal Geometry: The 15° contact angle provides an ideal balance between radial and axial load capacity, while the phenolic resin cage ensures stable operation at high speeds with reduced friction.
Superior Load Capacity: With a dynamic load rating of 3780 lbf and static load rating of 2745 lbf, this bearing delivers reliable performance under significant combined loads.
High-Speed Performance: The lightweight phenolic cage and precision-ground chrome steel components enable operation at limiting speeds of 34,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Capability: Designed as universal matchable bearings, they can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for rigidity and load distribution.
7011 CEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and rigidity
- High-Speed Machining Centers: Applications demanding rotational speeds up to 34,000 rpm with minimal vibration
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Robotic Systems: High-precision robot joints and automation equipment
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, actuators, and auxiliary power units
