7215 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7215 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7215 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high rigidity. This universally matchable (SU) bearing features a 15° contact angle and P4A tolerance class, making it ideal for high-speed spindles and precision machinery. Its key advantage lies in its ability to handle combined loads (radial and axial) simultaneously while maintaining superior running accuracy. The extra light preload (Class A) ensures minimal deflection under operational stresses, contributing to enhanced system stability and longevity.
7215 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7215 | Basic designation indicating a 75 mm bore, 130 mm OD, and 50 mm width. |
| CD | Contact angle of 15° and high-precision construction. |
| P4A | Indicates tolerance class P4A with enhanced dimensional and running accuracy. |
| DGA | Universal Matchable (SU) designation, allowing for flexible mounting arrangements in sets. |
7215 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The angular contact design and P4A tolerance class provide exceptional stiffness and running accuracy, critical for high-speed applications. The phenolic cage ensures smooth operation at high rotational speeds.
- Superior Load Capacity: Engineered to support significant combined radial and axial loads. With a dynamic load rating of 26,325 lbf and static load rating of 28,125 lbf, it offers reliable performance under demanding conditions.
- Optimized High-Speed Performance: The phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 22,000 rpm, making it suitable for high-speed spindle applications.
- Pre-Lubricated & Ready for Use: The bearing is pre-lubricated, facilitating immediate installation and initial operation. The open seal type allows for custom lubrication regimes if required by specific application needs.
7215 CD/P4ADGA Bearing Typical Application Areas
The 7215 CD/P4ADGA is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps & Compressors
- Aerospace & Defense Actuation Systems
