7013 ACE/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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7013 ACE/HCP4AH1 Bearing Product Overview & Core Advantages
The 7013 ACE/HCP4AH1 is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single bearing is part of a matched set of 2, featuring a 25° contact angle and is supplied with a preload for immediate high-rigidity operation. Its construction with a phenolic cage and ceramic balls enables superior high-speed performance, with a limiting speed of 31,000 rpm. The open design allows for custom lubrication schemes, making it ideal for high-precision spindles and other demanding machinery.
7013 ACE/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACE | 25° contact angle, preloaded | Optimized for combined loads and provides high system rigidity. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduced weight, lower friction, and extended service life at high speeds. |
| P4A | High Precision Tolerance Class (ABEC 7 / ISO P4) | Guarantees exceptional running accuracy for precision applications. |
7013 ACE/HCP4AH1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation, making it an ideal high-speed bearing.
- Phenolic Resin Cage: This lightweight and robust cage material offers excellent dimensional stability and low friction at high rotational speeds, contributing directly to the high limiting speed.
- 25° Contact Angle & Preload: This configuration is engineered to handle significant combined radial and axial loads simultaneously. The applied preload eliminates internal clearance, resulting in superior stiffness and precise rotational guidance.
- Precision Ground to P4A: Extremely tight bore and outside diameter tolerances ensure minimal runout and vibration, which is critical for the accuracy of machine tool spindles and other high-precision equipment.
7013 ACE/HCP4AH1 Bearing Typical Application Areas
This bearing is specified for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units (APUs).
- High-Frequency Motors and Spindles: PCB drilling spindles and dental handpieces.
