7202 ACD/P4ADFA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7202 ACD/P4ADFA Bearing Product Overview & Core Advantages
The 7202 ACD/P4ADFA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This duplex face-to-face (DF) arrangement bearing set is preloaded to Extra Light (Class A) specifications, ensuring high running accuracy and system rigidity. Its design is optimized to handle combined loads—significant radial loads alongside axial loads in both directions—making it an ideal choice for high-precision spindles and machinery requiring minimal deflection under operational stresses.
7202 ACD/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high axial load capacity. |
| P4A | Indicates high precision tolerance class (superior to ABEC 7), ensuring extremely tight dimensional and running accuracy for critical applications. |
| DF | Duplex Face-to-Face arrangement. This matched set of two bearings increases system rigidity and is preloaded to minimize axial and radial play. |
7202 ACD/P4ADFA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex face-to-face (DF) arrangement and Class A preload create an exceptionally stiff bearing system, crucial for applications where shaft displacement must be minimized. The P4A tolerance class guarantees superior running accuracy.
Superior Load Capacity: With a 25° contact angle and a radial dynamic load rating of 2632 lbf, this bearing is engineered to handle significant combined radial and axial loads simultaneously.
High-Speed Capability: The phenolic cage is lightweight and robust, contributing to smooth operation and enabling a high limiting speed of 95,000 rpm. The open design allows for efficient lubrication management in high-speed systems.
Material & Construction: Manufactured from chrome steel for both rings and balls, this bearing offers high durability and wear resistance, suitable for a wide operating temperature range from -30°C to 110°C.
7202 ACD/P4ADFA Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Medical and Dental Equipment Spindles
- High-Precision Rotary Tables
