7200 CD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7200 CD/P4A Bearing Product Overview & Core Advantages
The 7200 CD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Its defining feature is the 15° contact angle, optimized to support significant combined loads—handling both radial and axial forces in one direction simultaneously. Manufactured to the exacting P4 (ABEC-7) tolerance class, this bearing ensures exceptional running accuracy and rotational stability. The phenolic cage and pre-greased lubrication contribute to its high-speed capability, making it an ideal, compact solution for high-reliability machinery where space and precision are critical.
7200 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Suffix | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high axial load capacity and high-speed operation. |
| D | High Load Capacity Design | Features a larger ball complement and optimized raceway geometry for increased load ratings. |
| P4 | P4 (ABEC-7) Tolerance Class | Guarantees ultra-precise dimensions and runout for applications requiring minimal vibration and high rotational accuracy. |
| A | Preload Level (Light) | The bearing is supplied with a light preload, reducing axial play and increasing system rigidity for improved positional accuracy. |
7200 CD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single-row angular contact design, combined with the P4 precision and light preload, provides a very stiff and accurate rotational axis, minimizing deflection under load.
Superior Load Capacity: The C design with a 15° contact angle and the D suffix for high load capacity enables the bearing to efficiently support substantial combined radial and axial loads.
Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the pre-applied lubrication ensures stable operation up to the limiting speed of 90,000 rpm. This makes it a prime choice for high-speed spindles.
Material Integrity: Constructed from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and a long operational life under demanding conditions.
7200 CD/P4A Bearing Typical Application Areas
The 7200 CD/P4A is specified for high-performance applications where precision, speed, and rigidity are non-negotiable. Key industries and equipment include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-accuracy gearboxes)
- Aerospace & Defense Systems (Gyroscopes, radar positioning systems)
- High-Frequency Motors and Spindles
- Medical and Laboratory Equipment (Centrifuges, dental handpieces)
