71801 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71801 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71801 ACDGB/P4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial) in one direction, this bearing features a 25° contact angle and P4 tolerance class for superior running precision. Its compact design with a 12 mm bore and 5 mm width makes it ideal for space-constrained, high-speed applications. Preloaded with Light / Class B preload, it delivers optimized stiffness and minimal axial play, ensuring reliable performance in demanding operational conditions.
71801 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable (SU) bearing for precise paired mounting |
| P4 | High-precision tolerance class for exceptional running accuracy |
71801 ACDGB/P4 Bearing Structural Features & Performance Benefits
High Precision & Rigidity: The P4 tolerance class ensures minimal dimensional variation, while the Light preload eliminates axial play, providing superior system stiffness and positional accuracy.
Optimized Load Capacity: With a 25° contact angle, this bearing effectively handles combined radial and axial loads. The dynamic load rating of 439 lbf and static load rating of 252 lbf ensure reliable performance under various loading conditions.
High-Speed Capability: The phenolic cage and optimized internal geometry enable stable operation at limiting speeds up to 100,000 rpm, making it suitable for high-speed spindles and precision machinery.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be precisely paired with other identical bearings in sets of 3 to achieve specific preload and stiffness requirements without additional adjustment.
71801 ACDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding spindles
- Precision Instruments - Measuring equipment and optical devices requiring minimal runout
- High-Speed Motors - Small motor applications demanding high rotational accuracy
- Medical Equipment - Dental handpieces and laboratory instrumentation
- Aerospace Components - Guidance systems and precision actuators
