S7005 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S7005 CD/P4ADGA Bearing Product Overview & Core Advantages
The S7005 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a double row angular contact ball bearing, it excels at simultaneously handling combined loads—significant radial loads and bidirectional axial loads. Its extra light preload (Class A) ensures smooth, quiet operation with minimal runout, making it ideal for high-speed spindles and other high-precision, high-reliability machinery. The sealed design and pre-lubrication contribute to long service life with minimal maintenance.
S7005 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7005 CD/P4ADGA provides detailed technical specifications:
- S7005: Basic designation indicating a double row angular contact ball bearing with a 25mm bore.
- C: Denotes a 15° contact angle, optimized for high-speed applications.
- D: Indicates the bearing is filled with a grease lubricant.
- P4A: Specifies a very high tolerance class (superior to ABEC 7), ensuring extreme dimensional and running accuracy.
- DGA: Signifies a Universal Matchable (SU) bearing designed for precise preload when mounted in a back-to-back or face-to-face arrangement with another bearing of the same code.
S7005 CD/P4ADGA Bearing Structural Features & Performance Benefits
The S7005 CD/P4ADGA's construction delivers distinct performance advantages:
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling stable performance under combined loads. The 15° contact angle is ideal for supporting substantial axial loads in both directions.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized grease lubrication and precision manufacturing contribute to its high limiting speed of 83,000 rpm.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal vibration and exceptional running accuracy for demanding applications.
- Universal Matching: The Universal Matchable (SU) feature allows two bearings to be paired to achieve a specific preload without selective mounting, simplifying installation and ensuring consistent performance.
S7005 CD/P4ADGA Bearing Typical Application Areas
This high-precision bearing is engineered for use in advanced machinery where accuracy and speed are critical. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
- Robotic Arms and CNC Rotary Tables
