71826 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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71826 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71826 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 significant axial loads in one direction. The phenolic cage and universal matching (SU) capability make it particularly suitable for high-speed spindle arrangements and precision machinery where minimal deflection and thermal stability are critical.
71826 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 71826 | Basic bearing designation | 130mm bore, 165mm OD, 18mm width |
| AC | Angular Contact design | 25° contact angle for combined load capacity |
| DGB | Universal matching bearing | Can be arranged in tandem, back-to-back, or face-to-face configurations |
| P4 | Tolerance class | High-precision grade with tight dimensional tolerances |
71826 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 running accuracy and minimal vibration.
Optimized Load Capacity: The 25° contact angle and 35 chrome steel balls provide excellent combined load carrying capacity with radial dynamic load rating of 8190 lbf and static load rating of 11250 lbf.
High-Speed Performance: The phenolic resin cage offers superior strength-to-weight ratio and thermal stability, enabling limiting speeds up to 11,000 rpm while maintaining dimensional integrity.
Thermal Stability: The phenolic cage material provides excellent dimensional stability across the operating temperature range of -30°C to 110°C, maintaining precision under thermal variations.
Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be precisely matched with other bearings in sets of 3, allowing for optimized preload and stiffness in multi-bearing arrangements.
71826 ACDGB/P4 Bearing Typical Application Areas
Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications requiring P4 tolerance and high rigidity.
Precision Robotics: Robot arm joints and precision positioning systems where angular contact bearings provide accurate motion control.
Medical Equipment: High-speed dental handpieces, medical scanners, and laboratory equipment demanding quiet operation and precision.
Aerospace Systems: Guidance systems, actuator mechanisms, and auxiliary power units requiring reliable performance in demanding environments.
High-Speed Motors: Servo motors, spindle motors, and other precision electric motors where high rotational accuracy is essential.
