71901 CD/P4ADGB
71900 Series Super Precision Angular Contact Ball Bearings
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71901 CD/P4ADGB Bearing Product Overview & Core Advantages
The 71901 CD/P4ADGB is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As part of the Universal Matchable (SU) series, it can be mounted in pairs to form a duplex bearing arrangement, providing superior support for combined loads. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-speed spindles and other precision machinery. The light preload (Class B) minimizes deflection under operational forces, enhancing system stability and lifespan.
71901 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71901 | Basic bearing series and size designation |
| CD | Contact angle of 15° |
| P4A | High precision tolerance class (exceeds ABEC 7) |
| DGB | Universal Matchable (SU) bearing, can be paired in any combination |
71901 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance class with a 15° contact angle, this bearing delivers exceptional running accuracy and stiffness, crucial for minimizing vibration and maintaining positional stability in precision applications.
Optimized for High-Speed Operation: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 220,000 rpm. This makes it suitable for demanding high-speed spindle applications.
Superior Load Capacity: The angular contact design efficiently handles combined radial and axial loads. With a dynamic load rating of 981 lbf and static load rating of 562 lbf, it provides reliable performance under significant operational stresses.
Universal Matching Capability: As a Universal Matchable (SU) bearing, the 71901 CD/P4ADGB can be universally paired with another identical bearing to create a pre-loaded set (DB, DF, or DT arrangement) without selective matching, simplifying installation and inventory.
71901 CD/P4ADGB Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Dental and Medical Handpieces
- Aerospace Instrumentation
- High-Precision Robotics
