71800 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71800 CDGA/P4 Bearing Product Overview & Core Advantages
The 71800 CDGA/P4 is a single-row angular contact ball bearing designed for applications demanding high precision and superior performance under combined loads. Engineered to an ABEC 7 / P4 tolerance class, it offers exceptional dimensional accuracy and running precision. Its key advantage lies in its ability to support significant axial loads in one direction while simultaneously handling radial loads, making it ideal for high-speed spindles and precision mechanisms. The bearing features a phenolic resin cage and comes pre-lubricated for immediate use, ensuring reliable operation and long service life in demanding environments.
71800 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series designation, indicating a metric, single-row angular contact design with a 10mm bore. |
| C | Specifies a 15° contact angle, optimized for high-speed applications requiring high axial load capacity. |
| DG | Indicates a Universal Matchable (SU) bearing. Two bearings can be paired in a back-to-back (DB) or face-to-face (DF) arrangement to support axial loads in both directions. |
| A | Signifies an Extra Light preload. This internal preload minimizes axial play, enhancing rigidity and rotational accuracy for precise applications. |
| /P4 | Denotes a high precision tolerance class (equivalent to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
71800 CDGA/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance with an Extra Light preload (A), this bearing delivers exceptional running accuracy and system rigidity, critical for minimizing deflection in high-speed spindles.
- Optimized Load Capacity: The 15° contact angle (C) is engineered to efficiently handle combined (radial and axial) loads, with a dynamic load rating of 428 lbf.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 95,000 rpm. The open design and pre-lubrication facilitate efficient heat dissipation.
- Universal Matching Capability (DG): As a Universal Matchable bearing, it can be universally paired with another identical bearing to create a matched set that accommodates complex load conditions and moments.
- Durable Construction: Components made from chrome steel provide high hardness and wear resistance, ensuring long-term reliability and consistent performance.
71800 CDGA/P4 Bearing Typical Application Areas
The 71800 CDGA/P4 is specified for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instruments: Measuring devices, optical scanners.
- High-Speed Motors: Servo motors, spindle motors.
- Robotics: Joints and arms requiring precise, high-speed movement.
- Aerospace & Defense: Gyroscopes, navigation systems, and other critical control mechanisms.
