71901 CD/P4ADGC
71900 Series Super Precision Angular Contact Ball Bearings
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71901 CD/P4ADGC Bearing Product Overview & Core Advantages
The 71901 CD/P4ADGC is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-set pair, it delivers superior performance in handling combined radial and axial loads simultaneously. Manufactured to P4A tolerance class with a moderate preload (Class C), this bearing offers high running accuracy, excellent stability, and is optimized for high-speed operation up to 220,000 rpm, making it ideal for demanding precision machinery.
71901 CD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71901 | Basic bearing designation (ultra-light series, 12mm bore) |
| CD | 15° contact angle design, optimized for high-speed applications |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DGC | Universal matchable pair (SU arrangement) with moderate preload |
71901 CD/P4ADGC Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with extremely tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for precision applications.
Optimized Load Capacity: The 15° contact angle and universal matching design enable the bearing pair to efficiently handle combined radial and axial loads from both directions, providing stable rotational performance under complex loading conditions.
High-Speed Capability: Features a phenolic resin cage that reduces centrifugal forces and friction, combined with the optimized 15° contact angle to achieve exceptional limiting speeds of 220,000 rpm.
Pre-Lubricated Design: Factory-lubricated for immediate operation, supporting a wide temperature range from -30°C to 110°C while maintaining consistent performance.
71901 CD/P4ADGC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical devices
- High-Speed Motors: Spindle motors and high-frequency applications
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Components: Gyroscopes and navigation systems
