7201 CD/HCP4ADGA
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
7201 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7201 CD/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. As a universally matchable (SU) bearing supplied in a pre-lubricated, matched set of two, it is designed to accommodate combined loads (radial and axial) simultaneously. Its core advantages stem from a P4A super-precision tolerance class, a 15° contact angle for optimized axial load capacity, and the use of ceramic balls and a phenolic cage, which collectively contribute to high-speed capability, reduced friction, and extended service life. This bearing is the ideal solution for high-rigidity, high-reliability spindle arrangements.
7201 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7201 | Basic bearing series and size designation (12mm bore, 32mm OD). |
| C | 15° nominal contact angle. |
| D | The bearing is a matched set. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls. |
| P4A | Super Precision Tolerance Class, tighter than ABEC 7. |
| DG | Universal Match (SU): Bearings can be mounted in any combination (DB, DF, DT). |
| A | Extra Light Preload. |
7201 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation. This is critical for achieving a limiting speed of 95,000 rpm and enhanced durability.
Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, offering excellent strength and wear resistance with minimal friction.
Universal Matchability (SU): The universally matchable (SU) design provides exceptional flexibility in mounting configurations (back-to-back, face-to-face, or tandem) to optimize system rigidity and precisely manage preload and combined loads.
Precision & Preload: Manufactured to a P4A tolerance class with an extra light preload (Class A), this bearing delivers ultra-precise rotational accuracy, minimal run-out, and immediate responsiveness in high-performance systems.
7201 CD/HCP4ADGA Bearing Typical Application Areas
The 7201 CD/HCP4ADGA is specified for high-end applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tooling and high-speed machining centers
- Robotic Arm Drives and servo motors
- Aerospace & Defense instrumentation and control systems
- Medical Device motors and dental handpieces
