71826 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71826 CDGA/P4 Bearing Product Overview & Core Advantages
The 71826 CDGA/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 with an Extra Light (A) preload, this bearing delivers superior running precision and minimal deflection under load. Its 15° contact angle is optimized to handle combined loads, efficiently supporting significant radial loads while accommodating substantial axial loads in one direction. The phenolic cage and factory-applied lubrication enable reliable high-speed operation up to 11,000 rpm, making it ideal for demanding applications where precision, speed, and rigidity are critical.
71826 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71826 | Basic bearing designation (130mm bore, 165mm OD) | Standard dimension reference |
| C | 15° contact angle design | Optimized for combined radial and axial loads |
| D | High capacity internal design | Enhanced load carrying capability |
| G | Universal matchable bearing | Can be paired in sets for precise preload control |
| A | Extra light preload class | Minimal friction, ideal for high-speed applications |
| P4 | High precision tolerance class | Exceptional running accuracy and dimensional stability |
71826 CDGA/P4 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional control (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring exceptional running accuracy and minimal vibration.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and dimensional stability at high speeds, while factory lubrication enables reliable operation up to 11,000 rpm.
Superior Load Capacity: With 35 chrome steel balls of 9.525mm diameter, this bearing delivers impressive dynamic load rating of 8,775 lbf and static load rating of 11,925 lbf, capable of handling significant combined loads.
Thermal Stability: The phenolic cage and optimized internal geometry maintain dimensional stability across the operating temperature range of -30°C to 110°C.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be precisely paired in sets of up to 4 bearings to achieve specific preload requirements without selective assembly.
71826 CDGA/P4 Bearing Typical Application Areas
Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling machine spindles requiring exceptional rigidity and running accuracy.
Precision Industrial Equipment: High-speed automation systems, robotics, and precision positioning systems where minimal deflection and high rotational accuracy are critical.
Aerospace Components: Aircraft accessory drives, helicopter transmissions, and aerospace instrumentation requiring reliable high-speed performance.
Medical Equipment: High-speed dental handpieces, laboratory centrifuges, and medical imaging systems demanding precision and reliability.
High-Speed Motors: Precision electric motors, spindle drives, and servo systems where high rotational speeds and accuracy are essential.
