71802 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71802 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71802 ACDGB/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 dimensional stability and minimal runout. Its 25° contact angle provides optimal performance for combined loads, efficiently handling both radial and significant axial loads in one direction. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements and precision machinery demanding high rigidity and thermal stability.
71802 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| DGB | Universal Matchable (SU) with Light Preload | Enables precise bearing arrangements without additional adjustment |
| P4 | Super Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
71802 ACDGB/P4 Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4 tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and minimal vibration.
Optimized Contact Design: The 25° contact angle provides superior axial load capacity while maintaining excellent radial load performance, making it ideal for combined loading conditions.
High-Speed Capability: The phenolic resin cage enables operation at limiting speeds up to 95,000 rpm, providing excellent performance in high-speed applications with reduced friction and heat generation.
Universal Matching: Designed as Universal Matchable (SU) bearings, they can be paired in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for rigidity and load capacity.
71802 ACDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Precision Instruments: Measuring equipment and optical instruments requiring minimal runout
- High-Speed Motors: Servo motors and spindle drives demanding high rotational accuracy
- Medical Equipment: Dental handpieces and surgical tools requiring reliable high-speed operation
- Aerospace Components: Guidance systems and instrumentation requiring precision motion control
