7013 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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7013 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The 7013 CD/HCP4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and is preloaded to Extra Light (Class A) specifications, ensuring minimal axial and radial runout. Its construction with ceramic balls and a phenolic cage enables outstanding high-speed performance and reduced rotating mass. This bearing is engineered to handle combined loads efficiently, making it ideal for high-precision, high-reliability machinery.
7013 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series, indicating a metric angular contact bearing with 65mm bore, 100mm OD, and 36mm width. |
| CD | Duplex arrangement in a Back-to-Back (DB) configuration. |
| HC | Hybrid Ceramic, indicating the use of ceramic balls. |
| P4A | High precision tolerance class (equivalent to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
| DB | Duplex Back-to-Back mounting, providing high moment stiffness. |
| A | Specifies the preload level as Extra Light (Class A). |
7013 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning.
- Enhanced Speed & Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and allows for a high limiting speed of 31,000 rpm, reducing heat generation.
- Superior Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications demanding extreme accuracy.
- Optimized Load Capacity: With a 15° contact angle, the bearing is engineered to handle significant combined radial and axial loads simultaneously.
- Pre-Configured Solution: Supplied as a matched set of 2 bearings with a pre-applied lubricant, the unit is ready for installation, simplifying assembly and ensuring consistent performance.
7013 CD/HCP4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for demanding 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 rotary actuators requiring high stiffness and positional accuracy.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: High-speed centrifuges and imaging device rotors.
