7205 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7205 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7205 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle and Universal Matchable (SU) design enable it to handle combined loads efficiently, supporting both radial and axial loads simultaneously. The bearing comes with an Extra light preload (Class A), making it ideal for high-precision spindles and other applications where minimal deflection and high rigidity are critical.
7205 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7205 | Basic bearing series: Angular contact ball bearing with 25mm bore, 52mm OD, 30mm width |
| CD | Contact angle designation: 15° contact angle |
| P4A | Tolerance class: High precision grade with enhanced dimensional accuracy |
| DGA | Universal Matchable (SU) designation: Bearings can be universally matched in any combination |
7205 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0, OD tolerance: -0.004mm to 0) ensures exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle provides excellent performance for combined loads, with dynamic load rating of 4972 lbf and static load rating of 3285 lbf.
Superior High-Speed Performance: Featuring a phenolic cage and optimized internal geometry, the bearing achieves a limiting speed of 100,500 rpm, making it ideal for high-speed applications.
Premium Material Selection: Constructed from chrome steel for both rings and balls (7.938mm diameter, 13 balls), ensuring high durability and long service life under demanding conditions.
Universal Matching Capability: The SU designation allows bearings to be universally matched in sets of 2, providing flexibility in mounting arrangements and preload optimization.
7205 CD/P4ADGA Bearing Typical Application Areas
Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines requiring exceptional accuracy and rigidity.
High-Speed Motors: Precision electric motors, spindle motors, and high-frequency applications where rotational accuracy is critical.
Medical Equipment: Dental handpieces, surgical tools, and medical imaging devices demanding quiet operation and high reliability.
Aerospace Systems: Guidance systems, avionics, and precision instrumentation requiring stable performance under varying conditions.
Robotics and Automation: Industrial robots, precision positioning systems, and automated manufacturing equipment.
