71910 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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71910 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 71910 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 15° contact angle and P4A tolerance class, making it ideal for applications requiring high rigidity and precise rotational accuracy. Its key advantage lies in its ability to handle combined loads (radial and axial) efficiently while operating at high speeds. The use of ceramic balls and phenolic cage contributes to its superior high-speed capabilities and reduced weight.
71910 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series and size designation (50mm bore, 72mm OD, 24mm width) |
| CD | Contact angle of 15° |
| HC | Hybrid Ceramic (Silicon Nitride balls) |
| P4A | High Precision Tolerance Class (superior to ABEC 7) |
| DGA | Universal Matchable (SU) arrangement, supplied as a set of 2 bearings |
71910 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The P4A tolerance class ensures extremely tight dimensional and running accuracy, providing stable and precise rotation essential for high-performance machinery. The universal matchable design allows for flexible mounting arrangements while maintaining optimal preload and stiffness.
Enhanced Speed & Performance: The combination of ceramic balls and a phenolic resin cage enables significantly higher limiting speeds (46,000 rpm). Ceramic balls reduce centrifugal forces, friction, and heat generation, while the phenolic cage offers excellent strength-to-weight ratio and smooth operation at high velocities.
Superior Load Capacity: With a 15° contact angle, this bearing is optimized to handle substantial combined radial and axial loads. The dynamic load rating of 4972 lbf and static load rating of 4680 lbf ensure reliable performance under demanding conditions.
Optimized for Precision Applications: The extra light preload (Class A) minimizes starting and running torque while ensuring high rotational accuracy and system rigidity, making it perfect for ultra-precise spindles and positioning systems.
71910 CD/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Instrumentation: Measuring equipment, coordinate measuring machines (CMM)
- High-Speed Motors: CNC spindle motors, high-frequency motors
- Aerospace Components: Gyroscopes, navigation systems
- Medical Equipment: Dental handpieces, laboratory centrifuges
