7207 CD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7207 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7207 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-loaded duplex set, it is engineered to handle combined radial and axial loads simultaneously. Its P4A tolerance class ensures ultra-precise rotational performance, making it ideal for high-speed spindles and other critical machinery where high rigidity and minimal runout are paramount.
7207 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code | Interpretation |
|---|---|
| 7207 | Basic series code for a 35mm bore, 72mm OD angular contact ball bearing. |
| C | Designates a 15° contact angle, optimized for high-speed operation. |
| D | Indicates the bearing is part of a universal matchable (SU) duplex set. |
| P4A | Specifies a high-precision tolerance class with enhanced dimensional and running accuracy. |
| DB | Indicates a back-to-back mounting arrangement of the duplex set. |
7207 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system capable of withstanding combined loads and moment loads effectively. This configuration significantly increases system stability.
High-Speed Performance: Featuring a lightweight phenolic resin cage and a 15° contact angle, this bearing is engineered for high-speed applications, achieving a limiting speed of 41,000 rpm. The open design facilitates efficient lubrication management.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and minimal vibration.
Universal Matchability (SU): As a universal match bearing, any two bearings from this series can be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement without selective matching, offering great flexibility in design and mounting.
7207 CD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Where superior rigidity and speed are critical.
- Precision Spindles: For PCB drilling, engraving, and other fine-detail machining.
- Industrial Pumps & Compressors: Applications requiring reliable, high-speed rotation.
