7013 CD/HCPA9A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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7013 CD/HCPA9A Bearing Product Overview & Core Advantages
The 7013 CD/HCPA9A is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This single bearing features a 15° contact angle and is supplied with a preload, making it ideal for setups requiring minimal axial and radial deflection under load. Its construction with ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life in demanding operational environments. This bearing is designed to handle combined loads, with a significant capacity for thrust loads in one direction.
7013 CD/HCPA9A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series, defining the bearing dimensions (65mm Bore, 100mm OD, 18mm Width). |
| CD | Indicates a specific internal design with a 15° contact angle and a specific preload level for high rigidity. |
| HCPA9A | Denotes the tolerance class (PA9A), signifying extremely tight dimensional and running accuracy tolerances for precision bearing applications. |
7013 CD/HCPA9A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The application of a preload eliminates internal clearance, resulting in superior system stiffness and precise shaft positioning, critical for high-precision machinery.
- Enhanced High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for a very high limiting speed of 24,000 rpm, reducing operational friction and heat generation.
- Superior Load Capacity: The 15° contact angle is optimized to support significant combined loads, effectively handling both radial and one-directional axial forces.
- Optimized for Matched Sets: While supplied as a single bearing, its design allows it to be used in matched arrangements (back-to-back, face-to-face, or tandem) to create a system capable of handling complex load scenarios.
7013 CD/HCPA9A Bearing Typical Application Areas
The 7013 CD/HCPA9A is suited for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
