71817 CDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71817 CDGB/P4 Bearing Product Overview & Core Advantages
The 71817 CDGB/P4 is a single row angular contact ball bearing designed for applications demanding high precision and superior performance. Manufactured to P4 tolerance class, it guarantees exceptional running accuracy. Its 15° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, making it ideal for high-speed spindles and precision machinery. The bearing comes pre-lubricated and is part of a Universal Matchable (SU) set, allowing for flexible mounting configurations in duplex pairs to achieve the required rigidity and preload.
71817 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71817 | Basic bearing designation indicating the bore diameter (85 mm) and series. |
| C | Designates a 15° contact angle. |
| DGB | Indicates a Light preload (Class B). |
| P4 | Specifies the tolerance class, denoting high precision with tight dimensional and running accuracy tolerances. |
71817 CDGB/P4 Bearing Structural Features & Performance Benefits
High Precision & Rigidity: The P4 tolerance class ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy. The phenolic cage offers excellent dimensional stability and low friction, contributing to smooth operation at high speeds.
Optimized Load Capacity: With a 15° contact angle, this bearing is engineered to efficiently support combined loads, particularly excelling in carrying axial loads. The radial dynamic load rating of 4860 lbf and static load rating of 5738 lbf confirm its robust performance.
High-Speed Capability: The combination of the lightweight phenolic cage, precision-ground chrome steel components, and optimized internal geometry allows for a high limiting speed of 28,000 rpm.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be mounted in tandem, back-to-back, or face-to-face arrangements with other bearings from the same matched set to create a stiff, preloaded bearing system.
71817 CDGB/P4 Bearing Typical Application Areas
The 71817 CDGB/P4 is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and machinery include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Robotic Drives and Actuators
- Medical and Dental Equipment Spindles
