7013 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7013 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7013 ACD/HCP4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-set pair, it is engineered to accommodate combined loads—simultaneously handling significant radial and axial loads in both directions. Its construction with a ceramic ball and phenolic cage enables superior high-speed performance, while the P4A tolerance class ensures ultra-precise rotational accuracy. This bearing is pre-lubricated and features an open design, making it ideal for high-rigidity, high-speed spindle applications.
7013 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series, defining the bearing dimensions (65mm bore, 100mm OD, 36mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | The bearing is supplied as a Universal Matchable (SU) duplex pair. |
| HC | Hybrid Ceramic, indicating ceramic balls are used. |
| P4A | The tolerance class, denoting very high precision for bore, OD, and width. |
| DGA | Indicates an Extra light (A) preload is applied to the duplex set. |
7013 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The universal matchable duplex pair arrangement provides stable, high rigidity support, capable of handling combined radial and bidirectional axial loads efficiently. The 25° contact angle is optimized for substantial axial load carrying capacity.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and inertial mass, enabling a high limiting speed of 31,000 rpm. This makes it an ideal high-speed bearing.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional controls, this bearing ensures minimal runout and vibration, which is critical for precision machining and instrumentation.
- Optimized for Matched Sets: Being universal matchable (SU) allows for flexible mounting configurations (DB, DF, DT) to achieve the required preload and stiffness without selective assembly, simplifying installation and enhancing performance consistency.
7013 ACD/HCP4ADGA Bearing Typical Application Areas
The 7013 ACD/HCP4ADGA is engineered for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed CNC machining centers, grinding spindles, and milling heads.
- Precision Instrumentation: High-speed measuring devices and laboratory equipment.
- Advanced Robotics: High-accuracy joints and arm assemblies requiring minimal friction and high responsiveness.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
