71822 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71822 CDGA/P4 Bearing Product Overview & Core Advantages
The 71822 CDGA/P4 is a single row angular contact ball bearing designed for high-precision applications requiring exceptional accuracy and performance. Manufactured to P4 tolerance class, this bearing delivers superior running accuracy and rotational precision. Its key advantage lies in its ability to accommodate high combined loads, efficiently handling both radial and substantial axial loads in one direction. The combination of a phenolic cage and universal matching (SU) designation makes it an excellent choice for high-speed spindle arrangements, offering high rigidity and reliable operation in demanding environments.
71822 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| CDGA | 15° contact angle with Extra Light (A) preload | Optimized for high-speed operation with minimal friction and precise shaft positioning |
| P4 | Precision tolerance class | Superior dimensional and running accuracy for critical applications |
| SU | Universal Matchable | Can be arranged in multiple configurations (back-to-back, face-to-face, tandem) without selective mounting |
71822 CDGA/P4 Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4 tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for precise rotational motion. The 15° contact angle and optimized raceway geometry provide excellent rigidity against combined loads.
High-Speed Capability: The phenolic resin cage offers superior strength-to-weight ratio, reducing centrifugal forces and enabling stable operation at the limiting speed of 16,000 rpm. The open design facilitates efficient lubrication and heat dissipation.
Superior Load Capacity: With a dynamic load rating of 7,178 lbf and static load rating of 9,112 lbf, this bearing reliably handles significant radial and axial loading conditions. The optimized ball diameter (8.731 mm) and 32-ball configuration distribute loads evenly for extended service life.
Universal Matching Flexibility: As a universal matchable bearing, it can be paired with identical bearings in various preloaded arrangements, simplifying inventory and installation while providing design flexibility for complex spindle configurations.
71822 CDGA/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and speed
- Precision Gearboxes: Industrial transmission systems demanding high rotational accuracy and load capacity
- High-Speed Motors: Electric motors and spindles operating at elevated speeds with combined loading
- Medical Equipment: CT scanners, dental drills, and laboratory instruments requiring reliable, precise rotation
- Aerospace Components: Guidance systems, actuators, and auxiliary power units where precision and reliability are critical
