71810 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71810 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71810 ACDGB/P4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4 tolerance class, this bearing delivers superior dimensional stability and runout control. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, making it ideal for machine tool spindles and precision rotary systems. The phenolic cage ensures smooth operation at high speeds up to 46,000 rpm, while the universal matching (SU) capability allows for precise preload configurations in multi-bearing arrangements.
71810 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71810 | Basic bearing designation (50mm bore, 65mm OD, 7mm width) |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable bearing (can be paired in any combination) |
| P4 | High precision tolerance class (superior dimensional accuracy) |
71810 ACDGB/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and minimal runout for precision applications.
Optimized Load Capacity: The 25° contact angle provides excellent axial load carrying capacity in one direction while maintaining substantial radial load capability (1550 lbf dynamic, 1654 lbf static ratings).
High-Speed Performance: The phenolic resin cage and optimized internal geometry enable reliable operation at limiting speeds up to 46,000 rpm, reducing friction and heat generation.
Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be supplied in sets of 4 with light preload (Class B) for immediate installation in precision spindle arrangements without additional adjustment.
71810 ACDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Rotary Systems: Measuring instruments, optical scanners, and coordinate measuring machines
- High-Speed Motors: Spindle motors, high-frequency electric motors, and precision drive systems
- Medical Equipment: Dental handpieces, laboratory centrifuges, and medical imaging devices
- Aerospace Systems: Gyroscopes, navigation instruments, and precision actuation systems
