71940 CD/P4ADGB
71900 Series Super Precision Angular Contact Ball Bearings
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71940 CD/P4ADGB Bearing Product Overview & Core Advantages
The 71940 CD/P4ADGB is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 15° 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 stable performance in high-speed, high-precision machinery.
71940 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, optimized for high-speed operation | Enhanced axial load capacity and speed capability |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability |
| DGB | Universal matchable (SU) arrangement | Flexible mounting configurations for optimal preload control |
71940 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity Design: The optimized internal geometry and 15° contact angle provide exceptional stiffness, making this bearing suitable for applications requiring minimal deflection under load.
Superior Load Capacity: With a dynamic load rating of 76,050 lbf and static load rating of 119,250 lbf, this bearing reliably handles significant combined loads in demanding operating conditions.
High-Speed Performance: The phenolic cage and precision-ground components enable operation at limiting speeds up to 6,300 rpm, making it ideal for high-speed spindle applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore tolerance: -0.004mm to 0), ensuring consistent performance and long service life.
71940 CD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and laboratory instruments
- High-Speed Motors: Industrial motors and servo drives requiring minimal runout
- Aerospace Components: Guidance systems and precision positioning mechanisms
- Medical Equipment: High-speed dental handpieces and surgical tools
