7011 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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7011 CE/HCP4ADT Bearing Product Overview & Core Advantages
The 7011 CE/HCP4ADT is a high-precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This P4A tolerance class bearing features a 15° contact angle and is preloaded in a Duplex Tandem (DT) arrangement, enabling it to handle significant axial loads in one direction while maintaining high running accuracy. Its construction with a phenolic cage and ceramic balls contributes to superior high-speed performance and reduced heat generation, making it an ideal choice for high-performance spindles and precision machinery.
7011 CE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing series and size designation (55mm bore, 90mm OD) |
| CE | Specific internal design and contact angle (15°) optimized for high-speed operation |
| HC | Hybrid Ceramic construction, featuring ceramic balls for enhanced performance |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards |
| DT | Duplex Tandem arrangement, where two bearings are matched to increase axial load capacity in one direction |
7011 CE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement provides exceptional stiffness and enables the bearing set to withstand high unidirectional axial loads. The 15° contact angle is optimized for combined loads where axial force is predominant.
Superior High-Speed Performance: The combination of ceramic balls (Si3N4) and a lightweight phenolic resin cage significantly reduces centrifugal forces and inertial mass, allowing for a high limiting speed of 34,000 rpm. This hybrid construction also minimizes heat buildup at high rotational velocities.
Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal runout and superior rotational accuracy for precision applications.
Preloaded & Ready-to-Install: The bearings are supplied as a preloaded matched set, eliminating the need for complex adjustment during installation and ensuring immediate, optimal performance with zero axial play.
7011 CE/HCP4ADT Bearing Typical Application Areas
The 7011 CE/HCP4ADT is engineered for high-performance applications where speed, precision, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Rotary Systems: Industrial robotics, rotary tables, and indexing heads.
- High-Speed Motors & Spindles: Electric motor spindles, PCB drilling spindles, and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
