7207 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7207 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7207 CD/P4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-lubricated set of two, it enables simplified installation and optimal performance in high-speed configurations. Its P4A tolerance class and extra light preload (Class A) ensure minimal runout and smooth operation under combined radial and axial loads, making it ideal for high-reliability machinery.
7207 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7207 | Basic bearing series and size designation (35mm bore, 72mm OD) |
| CD | Contact angle of 15° and universal matchable design |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DGA | Universal matchable bearing set with specific preload and tolerances |
7207 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with 15° contact angle provides superior stiffness and can accommodate combined radial and axial loads simultaneously. With a dynamic load rating of 11700 lbf and static load rating of 9675 lbf, it delivers reliable performance under significant stress.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and minimal vibration.
High-Speed Capability: The phenolic cage and optimized internal geometry enable a limiting speed of 41,000 rpm, making it suitable for high-speed applications.
Thermal Stability: The phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C.
Matched Set Performance: As a universal matchable (SU) set of two bearings, they can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for rigidity and load distribution.
7207 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- High-Speed Motors - Electric motors and spindle drives requiring minimal vibration
- Precision Instrumentation - Measuring equipment and optical devices
- Aerospace Components - Gyroscopes and navigation systems
- Medical Equipment - Dental handpieces and surgical tools
