71806 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71806 CDGA/P4 Bearing Product Overview & Core Advantages
The 71806 CDGA/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4 tolerance class, it delivers superior running accuracy for demanding machinery. Its 15° contact angle is optimized to handle combined loads, efficiently supporting significant thrust loads in one direction alongside radial loads. The bearing comes prelubricated and is part of a Universal Matchable (SU) set, allowing for precise preload control when mounted in pairs or groups. Its compact design, with a 7mm width, makes it ideal for applications where space is at a premium without compromising on high rigidity and performance.
71806 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71806 | Basic bearing designation indicating a metric, single-row angular contact ball bearing with a 30mm bore. |
| CD | Contact angle designation (15°). |
| G | Indicates the bearing is part of a Universal Matchable (SU) set. |
| A | Specifies an Extra light preload. |
| /P4 | Denotes a high-precision tolerance class for superior running accuracy. |
71806 CDGA/P4 Bearing Structural Features & Performance Benefits
- High-Precision Design: Manufactured to P4 tolerance class with tight dimensional control on the bore, outside diameter, and width, ensuring minimal runout and vibration for smooth, precise operation.
- Optimized Load Capacity: The 15° contact angle and high-grade chrome steel construction enable the bearing to handle combined radial and axial loads efficiently, with a dynamic load rating of 994 lbf.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 83,000 rpm. The open design and prelubrication facilitate effective heat dissipation.
- Universal Matching (SU): Bearings are manufactured to universal matching standards, allowing any number of bearings to be mounted together without selective assembly to achieve a specific preload, simplifying installation and enhancing system rigidity.
- Material Quality: Components made from high-grade chrome steel provide excellent wear resistance and durability, supporting a long operational lifespan in precision applications.
71806 CDGA/P4 Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Rotary Systems: In semiconductor manufacturing equipment, coordinate measuring machines (CMM), and optical scanners.
- High-Frequency Motors and Spindles: Used in electric motors and spindle drives that operate at very high rotational speeds.
- Aerospace & Defense Systems: In gyroscopes, radar systems, and other instrumentation demanding high accuracy and reliability.
