71810 CDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71810 CDGB/P4 Bearing Product Overview & Core Advantages
The 71810 CDGB/P4 is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a single bearing with a Universal Matchable (SU) designation, it can be universally paired with other bearings of the same type to form a matched set, simplifying assembly and ensuring optimal preload. Its key advantages include the ability to accommodate combined radial and axial loads, superior running accuracy due to its P4 tolerance class, and high-speed capability enabled by its phenolic cage and optimized internal geometry.
71810 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71810 | Basic bearing designation, indicating a super-precision angular contact ball bearing with a 50 mm bore and 65 mm outside diameter. |
| C | Specifies a 15° contact angle, optimized for high-speed applications requiring high rigidity. |
| DGB | Indicates a Light preload (Class B). This pre-set internal load enhances bearing rigidity and minimizes axial and radial runout. |
| P4 | Denotes the tolerance class, corresponding to ISO Class 4 (ABEC 7). This ensures extremely tight dimensional and running accuracy. |
71810 CDGB/P4 Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The bearing's angular contact design with a 15° contact angle provides high rigidity, enabling it to support significant combined loads (radial and axial loads acting simultaneously).
Superior High-Speed Performance: The lightweight, durable phenolic resin cage minimizes centrifugal forces and friction, contributing to a high limiting speed of 46,000 rpm. The optimized internal geometry further enhances high-speed stability.
Precision and Reliability: Manufactured to P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for the accuracy of precision machinery. The Universal Matchable (SU) feature allows for simplified mounting of preloaded bearing sets without selective matching.
Material Quality: Constructed from high-grade chrome steel for both rings and balls, the bearing offers excellent wear resistance and long-term durability.
71810 CDGB/P4 Bearing Typical Application Areas
The 71810 CDGB/P4 is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles (e.g., for CNC milling and grinding machines)
- High-Frequency Spindles
- Precision Robotics and Automation Equipment
- High-Speed Motors and Encoders
- Medical and Dental Equipment Spindles
