7210 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7210 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7210 ACD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (simultaneous radial and axial loads), this single-row bearing features a 25° contact angle optimized for high axial load capacity. Its ceramic balls and P4 (ABEC-7) tolerance class ensure superior performance in high-speed and thermally stable environments, making it an ideal solution for precision machinery where reliability is paramount.
7210 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7210 | Standard bore diameter (50 mm) and dimension series |
| ACD | Angular Contact Design with a 25° contact angle |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls) |
| P4 | High-Precision tolerance class (ABEC-7 equivalent) |
7210 ACD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces, lowers operating temperatures, and extends service life, especially in high-speed applications.
High Rigidity & Load Capacity: The 25° contact angle and robust phenolic cage provide excellent stability, enabling the bearing to handle significant axial and radial loads simultaneously.
Precision Performance: Manufactured to P4 tolerance, this bearing ensures minimal runout and vibration, critical for applications requiring high rotational accuracy.
Optimized for High Speeds: The lightweight phenolic cage and ceramic balls contribute to a high limiting speed of 26,000 rpm, making it suitable for demanding spindle applications.
7210 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles
- Precision Robotics: Arm joints and rotary actuators requiring high accuracy
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Medical Equipment: Dental handpieces, centrifuges, and imaging devices
- High-Speed Motors: Electric vehicle drivetrains and industrial servo motors
