7213 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7213 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7213 ACDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single bearing features a 25° contact angle and an Extra Light (Class A) preload, making it ideal for applications requiring high rigidity and precise rotational accuracy. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance, with a limiting speed of 32,500 rpm. As part of a universally matchable (SU) set, it allows for flexible mounting configurations to handle combined loads efficiently. This bearing is pre-lubricated and operates within a temperature range of -30°C to 110°C, offering reliable performance in precision machinery.
7213 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| 7213 | Standard bore diameter (65 mm), outside diameter (120 mm), and width (23 mm) dimensions. | Standardized bearing dimensions for easy integration and replacement. |
| ACD | Angular Contact Design with a 25° contact angle. | Optimized for handling combined radial and axial loads. |
| GA | Extra Light Preload (Class A). | Provides high running accuracy and rigidity with minimal friction. |
| HCP4A | High Precision Tolerance Class P4A. | Ensures extremely tight dimensional and running accuracy, suitable for ultra-precision applications. |
7213 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The angular contact design with a 25° contact angle and Class A preload provides superior axial and radial stiffness, ensuring minimal deflection under load and high positional accuracy.
Enhanced High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage significantly reduces inertial forces, enabling stable operation at the high limiting speed of 32,500 rpm.
Superior Load Capacity: Engineered to handle significant combined loads (radial and axial), with a dynamic load rating of 14,332 lbf and a static load rating of 11,475 lbf, ensuring long service life in demanding conditions.
Universal Matching: Designated as Universal Matchable (SU), this bearing can be paired with other bearings from the same lot in various arrangements (back-to-back, face-to-face, or tandem) to create a matched set that meets specific application requirements for preload and stiffness.
7213 ACDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling machines requiring high precision and speed.
- Precision Robotics: In robot arm joints and rotary units where accuracy, rigidity, and high-speed operation are critical.
- Advanced Medical Equipment: Used in high-speed dental handpieces, centrifuges, and imaging device rotors.
- Aerospace Actuators and Control Systems: Applications demanding high reliability, precision, and performance in extreme conditions.
- High-Frequency Motors and Spindles: For applications in the semiconductor and electronics manufacturing industries.
