71824 CD/P4DGA
71800 Series Super Precision Angular Contact Ball Bearings
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71824 CD/P4DGA Bearing Product Overview & Core Advantages
The 71824 CD/P4DGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 15° contact angle and P4 tolerance class for superior performance in precision arrangements. Its extra light preload (Class A) ensures minimal deflection under operational stresses, making it ideal for high-speed spindles and precision machinery where rigidity and minimal runout are critical.
71824 CD/P4DGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined loads and flexible mounting configurations |
| P4 | High precision tolerance class | Exceptional running accuracy for precision applications |
| DGA | Extra light preload (Class A) | Reduced deflection and vibration at high speeds |
71824 CD/P4DGA Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance standards with tight dimensional control (bore diameter tolerance: -0.004mm to 0) for consistent performance in precision assemblies.
Optimized Internal Geometry: The 15° contact angle and 35 chrome steel balls (8.731 mm diameter) provide excellent load capacity for both radial and axial forces.
High-Speed Capability: The phenolic cage and optimized internal design enable operation at limiting speeds up to 16,250 rpm, making it suitable for high-speed spindle applications.
Universal Matching Design: As an SU-type bearing, it can be universally matched in any combination, simplifying installation and ensuring optimal preload in paired arrangements.
Superior Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability across a temperature range of -30°C to 110°C.
71824 CD/P4DGA Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Servo motors and high-frequency spindles
- Aerospace Components - Guidance systems and precision actuators
- Medical Equipment - Dental handpieces and surgical tool drives
