7002 CD/P4ADFC
7000 Series Super Precision Angular Contact Ball Bearings
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7002 CD/P4ADFC Bearing Product Overview & Core Advantages
The 7002 CD/P4ADFC is a precision duplex angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. This matched pair features a Face-to-Face (DF) arrangement and a P4A tolerance class, enabling it to handle combined radial and axial loads simultaneously. Its moderate preload (Class C) ensures high system stiffness and precise shaft positioning, making it ideal for demanding, high-speed machinery where operational reliability is critical.
7002 CD/P4ADFC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series, 15mm bore diameter, 32mm outside diameter |
| CD | Duplex bearing with Face-to-Face (DF) arrangement and moderate preload |
| P4A | High precision tolerance class with enhanced running accuracy requirements |
| DF | Face-to-Face mounting arrangement for increased moment load capacity |
| C | Moderate preload level providing optimal stiffness and thermal stability |
7002 CD/P4ADFC Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex Face-to-Face arrangement creates a highly rigid bearing system that minimizes deflection under load. Combined with P4A tolerance class and 15° contact angle, this configuration ensures exceptional running accuracy and positional stability.
Enhanced Load Capacity: Designed to handle combined radial and axial loads simultaneously, with a radial dynamic load rating of 1872 lbf and radial static load rating of 1102 lbf. The duplex arrangement effectively distributes loads across both bearings.
Optimized High-Speed Performance: Features a phenolic cage that reduces centrifugal forces and maintains dimensional stability at high speeds. The bearing achieves a limiting speed of 100,000 rpm, making it suitable for high-rotation applications.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and wear resistance. The open seal type allows for optimal lubrication efficiency in controlled environments.
7002 CD/P4ADFC Bearing Typical Application Areas
The 7002 CD/P4ADFC is specifically engineered for precision applications requiring high rotational accuracy and system stiffness:
- Machine Tool Spindles - High-speed machining centers and precision grinding applications
- Precision Instrumentation - Measuring devices and analytical equipment requiring minimal runout
- High-Speed Motors - Spindle motors and servo drives demanding precise shaft positioning
- Medical Equipment - Dental handpieces and surgical tools requiring reliable high-speed operation
- Aerospace Components - Guidance systems and precision actuators
