7209 ACD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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7209 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7209 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This universal matchable bearing features a 25° contact angle and light preload (Class B), making it ideal for handling combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy and rotational precision, while its phenolic cage enables stable operation at high speeds up to 41,000 rpm. The bearing comes pre-lubricated for immediate installation and long-term performance.
7209 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | 25° contact angle design optimized for high-speed applications |
| P4A | High precision tolerance class with enhanced dimensional and running accuracy |
| DGB | Universal matchable bearing set (SU arrangement) for simplified mounting and optimal performance |
7209 ACD/P4ADGB Bearing Structural Features & Performance Benefits
Optimized Contact Design: The 25° contact angle provides excellent capability for handling combined loads while maintaining high-speed performance. This design ensures optimal load distribution between balls and raceways.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), this bearing delivers exceptional running accuracy and minimal vibration for precision applications.
High-Speed Capability: The phenolic cage offers excellent dimensional stability and low friction at high rotational speeds, supporting the bearing's 41,000 rpm limiting speed while reducing centrifugal forces.
Universal Matching: As a Universal Matchable (SU) bearing, it can be paired with another identical bearing without selective matching, simplifying installation and ensuring consistent preload and performance in paired arrangements.
Robust Load Capacity: With a dynamic load rating of 14,918 lbf and static load rating of 13,500 lbf, the bearing provides reliable performance under significant radial and axial loading conditions.
7209 ACD/P4ADGB Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed motor shafts and precision gearboxes
- Industrial pumps and compressor systems
- Precision instruments and measuring equipment
- Robotic joints and automation systems
- Aerospace components requiring high precision and reliability
