71817 CD/P4DGC
71800 Series Super Precision Angular Contact Ball Bearings
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71817 CD/P4DGC Bearing Product Overview & Core Advantages
The 71817 CD/P4DGC is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. This metric bearing features a 15° contact angle and a Moderate (Class C) preload, making it exceptionally suitable for handling combined loads (radial and axial) simultaneously. Its universal matchable (SU) design allows for flexible mounting arrangements in pairs to support complex load conditions. Manufactured to P4 tolerance class, it ensures superior running accuracy, making it ideal for high-speed, high-precision machinery.
71817 CD/P4DGC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71817 | Basic bearing designation, indicating the size series and bore diameter of 85 mm. |
| C | Designates a 15° contact angle. |
| D | Indicates a Moderate preload (Class C). |
| P4 | Specifies the high precision tolerance class. |
| DG | Universal Matchable (SU) designation, indicating the bearing is supplied as a universal matchable pair. |
| C (in P4DGC) | Reinforces the Moderate preload (Class C) specification. |
71817 CD/P4DGC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and moderate preload provide high system rigidity, enabling the bearing to effectively support combined radial and axial loads. With a dynamic load rating of 7898 lbf and a static load rating of 11475 lbf, it offers reliable performance under demanding conditions.
High-Speed Performance: The use of a lightweight, durable phenolic cage and optimized internal geometry contributes to a high limiting speed of 28,000 rpm. This makes it an excellent choice for high-speed spindle applications.
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing ensures minimal runout and vibration for superior operational accuracy.
Material Quality: Constructed from chrome steel for both rings and balls, the bearing provides high hardness, wear resistance, and a long operational lifespan.
71817 CD/P4DGC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Where accuracy and speed are critical.
- Precision Grinding Spindles: Applications requiring extreme running accuracy.
- Industrial Pumps and Compressors: For reliable performance in rotary equipment.
- Robotic Arms and Automation Systems: Providing precise and rigid rotational support.
