7013 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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7013 CE/HCP4ADT Bearing Product Overview & Core Advantages
The 7013 CE/HCP4ADT is a precision angular contact ball bearing designed for the most demanding high-performance applications. This duplex tandem (DT) matched set is preloaded and manufactured to P4A tolerance class, ensuring exceptional running accuracy and system rigidity. Its core advantages include the ability to handle high combined loads (axial and radial) in one direction, superior high-speed capability enabled by a phenolic cage and ceramic balls, and outstanding operational stability. This bearing is the ideal solution for spindles and other precision machinery requiring maximum stiffness and rotational precision.
7013 CE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing designation indicating a 65 mm bore, 100 mm OD, and 36 mm width. |
| CE | Indicates a 15° contact angle, optimized for high-speed applications with a significant axial load component. |
| HC | Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| P4A | Denotes a super-precision tolerance class with even tighter specifications than ABEC 7 / ISO P4, ensuring minimal runout and vibration. |
| DT | Specifies a Duplex Tandem arrangement. Two bearings are mounted together to share the load and increase axial load capacity in one direction. |
7013 CE/HCP4ADT Bearing Structural Features & Performance Benefits
- Superior Rigidity & Load Capacity: The duplex tandem arrangement creates an exceptionally rigid bearing system, capable of supporting high combined radial and axial loads in one direction. This is critical for applications where shaft deflection must be minimized.
- Enhanced High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces and friction, enabling a high limiting speed of 31,000 rpm. The 15° contact angle is also optimized for such speeds.
- Reduced Heat Generation & Long Service Life: Hybrid ceramic construction provides superior lubrication retention, reduced thermal expansion, and extended service life compared to all-steel bearings, especially under high-speed conditions.
- Pre-Configured for Precision: Supplied as a preloaded and matched set, this bearing eliminates internal clearance, ensuring immediate precision, high running accuracy, and simplified installation.
7013 CE/HCP4ADT Bearing Typical Application Areas
This high-precision, high-speed bearing is engineered for advanced machinery where performance is paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for aerospace and automotive testing.
- Advanced Robotics: High-precision joints and actuators.
