71815 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71815 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71815 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 running accuracy. Its 25° contact angle provides optimal performance for combined loads, effectively handling both radial and axial forces in one direction. The phenolic cage and universal matching capability make it ideal for precision spindle arrangements where high-speed operation and thermal stability are critical requirements.
71815 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71815 | Basic bearing designation with 75mm bore diameter |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable bearing for preloaded arrangements |
| P4 | High-precision tolerance class for superior running accuracy |
71815 ACDGB/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with tight dimensional control (±0.004mm on bore and OD), ensuring minimal runout and vibration for precision applications.
Optimized Load Capacity: The 25° contact angle provides excellent performance for combined radial and axial loads, with dynamic load rating of 2992 lbf and static load rating of 3600 lbf.
High-Speed Capability: The phenolic cage offers superior strength-to-weight ratio and thermal stability, enabling operation at limiting speeds up to 28,000 rpm while maintaining dimensional stability.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be paired with other identical bearings to create preloaded sets of 2, 3, or 4 bearings, providing flexibility in spindle design and assembly.
Thermal Performance: The phenolic cage material and chrome steel construction maintain dimensional stability across the operating temperature range of -30°C to 110°C.
71815 ACDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring P4 accuracy
- High-Speed Machining Centers: Applications demanding both high rotational speeds and precision
- Precision Instrumentation: Measuring equipment and analytical instruments requiring minimal runout
- Robotic Systems: High-accuracy robotic arms and positioning systems
- Medical Equipment: Surgical tools and diagnostic imaging systems requiring reliable precision
- Aerospace Components
