7013 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7013 ACE/HCP4A Bearing Product Overview & Core Advantages
The 7013 ACE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and exceptional rotational accuracy. Designed to accommodate primarily axial loads in one direction, combined with moderate radial loads, it is a cornerstone component in high-performance machinery. Its defining features include a P4 (ABEC-7) tolerance class for superior running accuracy, a phenolic resin cage for high-speed capability, and ceramic balls that reduce centrifugal forces and enable higher limiting speeds. This bearing is preloaded, ensuring high rigidity and minimal axial play for precise shaft positioning.
7013 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Standard bearing series number, defining the bearing dimensions (65mm bore, 100mm OD, 18mm width). |
| ACE | Indicates a 25° contact angle and that the bearing is supplied with a specific preload for high rigidity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), offering advantages in high-speed applications. |
| P4A | Denotes a P4 tolerance class (equivalent to ABEC-7), representing a very high precision grade. |
7013 ACE/HCP4A Bearing Structural Features & Performance Benefits
High-Speed & High-Rigidity Design: The combination of a lightweight phenolic cage and ceramic balls significantly reduces rotating mass, allowing for a high limiting speed of 31,000 rpm. The defined 25° contact angle and factory-applied preload work in tandem to deliver high rigidity, critical for minimizing deflection under load.
Superior Load Capacity & Precision: Manufactured to P4 precision tolerances, this bearing ensures exceptionally smooth and accurate rotation. The hybrid ceramic construction not only facilitates speed but also provides a higher dynamic load rating compared to all-steel equivalents under certain conditions, enhancing service life.
Optimized for Performance: The open seal type allows for optimal lubrication flow and heat dissipation, which is essential for maintaining performance at high speeds. The standard lubrication is suitable for the specified temperature range of -30°C to 110°C.
7013 ACE/HCP4A Bearing Typical Application Areas
The 7013 ACE/HCP4A is ideally suited for high-demand, precision-driven applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring utmost precision and rigidity.
- High-Frequency Spindles: Used in PCB drilling and precision engraving machines.
- Precision Robotics: In critical joints and arm assemblies where accuracy and high-speed response are paramount.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and other instrumentation.
