7013 ACE/HCP4AH1DGA
Hybrid Ceramic Super Precision Bearings
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7013 ACE/HCP4AH1DGA Bearing Product Overview & Core Advantages
The 7013 ACE/HCP4AH1DGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing is manufactured to P4A tolerance class, ensuring ultra-precise dimensional control. Its core advantage lies in its ability to handle combined loads (radial and axial) efficiently, thanks to its 25° contact angle. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speed (31,000 rpm), and stable operation across a wide temperature range (-30°C to 110°C). This combination makes it ideal for high-speed and high-rigidity spindle applications.
7013 ACE/HCP4AH1DGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7013 | Basic Bearing Series & Size | Standard metric series with 65mm bore, 100mm OD, 36mm width. |
| ACE | Internal Design & Cage | Specific internal geometry and likely refers to the phenolic (resin) cage. |
| HC | Hybrid Ceramic | Indicates the use of ceramic balls, enabling higher speed and reduced heat generation. |
| P4A | Tolerance Class | Denotes a very high precision level for running accuracy and dimensional stability. |
| H1 | Preload Level | Specifies an extra light preload (Class A), minimizing friction for maximum speed. |
| DG | Universal Match (SU) | Bearing is universally matchable, allowing flexible arrangement in pairs (DB, DF, DT) without selective mounting. |
| A | Contact Angle | Standard 25° contact angle, optimized for handling combined loads. |
7013 ACE/HCP4AH1DGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The ceramic balls (typically Silicon Nitride) significantly reduce centrifugal forces and friction compared to steel balls. This directly enables the high limiting speed of 31,000 rpm, reduces operating temperature, and extends lubrication life.
Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, contributing to smooth operation and reduced vibration.
High Rigidity & Load Capacity: The angular contact design and P4A precision manufacturing provide high system rigidity. With a dynamic load rating of 7020 lbf and a static load rating of 6525 lbf, it reliably handles significant combined loads.
Universal Matchability (SU): The universal matchable (SU) feature allows for simplified mounting of bearing pairs in any pre-set configuration (back-to-back, face-to-face, or tandem) to achieve the desired rigidity and load capacity without the need for selective assembly.
Open Seal & Pre-lubrication: The open design is intended for oil lubrication systems, common in high-speed spindle applications, allowing for optimal cooling and flushing of contaminants. The bearing is supplied lubricated for initial operation and protection.
7013 ACE/HCP4AH1DGA Bearing Typical Application Areas
This high-performance precision bearing is engineered for advanced machinery where high speed, high rigidity, and exceptional accuracy are paramount. Key application areas include:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Spindles: PCB drilling spindles, high-frequency motor spindles.
- Robotics: High-precision robotic arms and joints requiring low friction and high responsiveness.
- Aerospace & Defense: Gyroscopes, navigation systems, and other critical rotating assemblies.
- High-Speed Pumps & Compressors: Applications demanding reliable operation at extreme rotational speeds.
