71914 ACDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71914 ACDGB/P4A Bearing Product Overview & Core Advantages
The 71914 ACDGB/P4A is a single row angular contact ball bearing designed for applications demanding high precision and superior performance. Manufactured to a P4A tolerance class, it guarantees exceptional dimensional accuracy and running precision. Its key advantage lies in its ability to accommodate high axial loads in one direction, making it ideal for high-speed spindles and other precision machinery. The light preload (Class B) ensures minimal deflection and high system rigidity, while the universal matching (SU) design allows for flexible mounting arrangements in duplex sets to handle combined loads.
71914 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Bearing series and size designation |
| AC | Angular Contact design with a 25° contact angle |
| DGB | Duplex set configuration, Universal Matchable (SU) |
| P4A | High Precision Tolerance Class, exceeding ABEC 7/ISO P4 standards |
71914 ACDGB/P4A Bearing Structural Features & Performance Benefits
High-Speed Capability: The phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 29,000 rpm, making it a true high-speed bearing.
Superior Load Capacity: With a 25° contact angle, this bearing is engineered to support significant axial loads in addition to radial loads, offering robust performance under combined loading conditions.
Precision & Rigidity: The P4A tolerance class ensures minimal runout and vibration. The application of a light preload eliminates internal clearance, resulting in high system rigidity and precise rotational accuracy.
Material & Lubrication: Constructed from chrome steel for both rings and balls, ensuring durability and long service life. The bearing is pre-lubricated for immediate use and operates effectively within a temperature range of -30°C to 110°C.
71914 ACDGB/P4A Bearing Typical Application Areas
The 71914 ACDGB/P4A is ideally suited for high-performance applications where precision and speed are critical. Key industries and machinery include:
- Machine Tool Spindles (e.g., CNC milling and grinding machines)
- High-Frequency Motors and Precision Spindles
- Robotics and Automation equipment
- Aerospace positioning systems and auxiliary units
- Medical Equipment such as high-speed dental handpieces
