S7211 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7211 CD/P4ADGA Bearing Product Overview & Core Advantages
The S7211 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to the exacting P4A tolerance class, this bearing is capable of simultaneously supporting high radial loads and bidirectional axial loads. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, while the sealed construction and phenolic cage contribute to its high-speed capabilities and long service life, making it an ideal solution for high-precision, high-rigidity applications.
S7211 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| C | 15° Contact Angle |
| D | Optimized internal design for high performance |
| P4A | High precision tolerance class (exceeding ABEC 7) |
| DG | Universal matchable bearing pair |
| A | Extra light preload |
S7211 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design provides superior stiffness and enables the bearing to handle significant combined loads (radial and axial loads from both directions) simultaneously. With a dynamic load rating of 20,340 lbf and static load rating of 19,125 lbf, it offers robust performance in demanding conditions.
High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 34,000 rpm, making it suitable for high-velocity spindles and rotors.
Sealed & Pre-Lubricated: The sealed construction effectively protects against contamination. Pre-lubricated with grease, the bearing offers reliable operation across a temperature range of -30°C to 110°C, reducing maintenance requirements.
Precision Engineering: Manufactured to P4A tolerance class with a 15° contact angle, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
S7211 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Grinding & Milling Heads
- Precision Instrumentation
- Industrial Pumps & Compressors
- Robotic Arm Joints & Precision Gearboxes
