S7011 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Ball & Washer Dimensions
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S7011 CEGA/P4A Bearing Product Overview & Core Advantages
The S7011 CEGA/P4A is a high-precision double row angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. Engineered with an extra light preload (Class A) and P4A super-precision tolerance, this bearing excels in handling combined radial and axial loads from both directions simultaneously. Its compact design, phenolic resin cage, and factory-applied grease lubrication make it an ideal solution for high-speed spindles and other precision machinery requiring minimal maintenance and maximum reliability.
S7011 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| S7011 | Basic bearing designation (55mm bore, 90mm OD, 18mm width) | Standard bearing dimensions for interchangeability |
| CE | Contact angle of 15° | Optimized for combined loads and axial rigidity |
| GA | Universal Matchable (SU) bearing set | Enables precise preload control in matched arrangements |
| P4A | Super precision tolerance class | Exceptional running accuracy for high-speed applications |
S7011 CEGA/P4A Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The double row angular contact design provides superior radial and axial stiffness, enabling the bearing to handle significant combined loads while maintaining precise shaft positioning. With a 15° contact angle and optimized internal geometry, it delivers excellent performance under complex loading conditions.
High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces and ensures stable operation at limiting speeds up to 46,000 rpm. The precision-ground chrome steel balls and raceways minimize friction and heat generation, contributing to the bearing's exceptional high-speed performance.
Pre-optimized Performance: Manufactured with extra light preload (Class A), this bearing arrives ready for installation without requiring additional adjustment. The universal matching capability (GA suffix) allows for precise axial play control when used in pairs, ensuring optimal stiffness and running accuracy in spindle applications.
Sealed & Lubricated for Life: As a sealed bearing with factory-applied grease, the S7011 CEGA/P4A operates maintenance-free within its specified temperature range (-30°C to 110°C). This sealed construction protects against contamination while retaining lubrication, extending service life in demanding environments.
S7011 CEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory devices
- High-Speed Motors: Spindle motors, high-frequency motors, and servo drives
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
