71805 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71805 CDGA/P4 Bearing Product Overview & Core Advantages
The 71805 CDGA/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior running precision and dimensional stability. Its 15° contact angle is optimized for handling combined loads, effectively supporting both radial forces and significant axial loads in one direction. The bearing comes pre-lubricated and features a phenolic cage for reduced friction and enhanced high-speed performance, making it ideal for demanding applications where precision and reliability are critical.
71805 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 71805 | Basic bearing designation (25mm bore, 37mm OD) | Standard metric dimensions |
| CD | 15° contact angle design | Optimized for combined radial and axial loads |
| G | Universal matching designation | Can be mounted in sets for increased rigidity |
| A | Extra light preload | Minimal internal clearance for high precision |
| P4 | Tolerance class | Superior dimensional and running accuracy |
71805 CDGA/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance standards with tight dimensional control (bore tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle enables efficient handling of combined radial and axial loads, with a dynamic load rating of 936 lbf and static load rating of 720 lbf.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling limiting speeds up to 103,000 rpm.
Precision Preload: Extra light preload (Class A) ensures minimal deflection under load while maintaining smooth operation and precise positioning.
Universal Matching: Designed as Universal Matchable (SU), allowing precise mounting in sets of up to 3 bearings for enhanced system rigidity and load distribution.
71805 CDGA/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional accuracy
- Precision Instrumentation: Measuring devices, optical equipment, and laboratory instruments
- High-Speed Motors: Spindle motors and high-frequency applications demanding minimal vibration
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, actuators, and precision control mechanisms
