71916 ACD/P4ATGB
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACD/P4ATGB Bearing Product Overview & Core Advantages
The 71916 ACD/P4ATGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a pre-set group of three, it enables simplified installation and optimal preload configuration. Its primary characteristics include a 25° contact angle for superior axial load capacity, P4A tolerance class for high running accuracy, and a phenolic cage for reduced friction at high rotational speeds. This bearing is engineered to handle combined radial and axial loads simultaneously, making it ideal for high-rigidity, high-precision spindles and machinery.
71916 ACD/P4ATGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing designation indicating size series and 80 mm bore diameter. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies two single-row bearings in a universal matchable (SU) arrangement. |
| P4A | High precision tolerance class for superior running accuracy and dimensional stability. |
| TGB | Indicates the bearing is lubricated with a specific grease suitable for the specified temperature range. |
71916 ACD/P4ATGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides excellent resistance to combined loads. The universal matchable (SU) arrangement of two single-row bearings creates a rigid system capable of handling significant axial loads from both directions when mounted in pairs.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to the high limiting speed of 17,000 rpm. This makes it an ideal high-speed bearing for demanding applications.
Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, this bearing ensures minimal runout and vibration for superior operational smoothness.
Optimized for Matched Sets: Supplied as a pre-selected set of three bearings, it guarantees consistent performance and simplifies the assembly of preloaded bearing systems, reducing installation time and potential errors.
71916 ACD/P4ATGB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring high precision and rigidity.
- Precision Spindles: Applications in PCB drilling, semiconductor manufacturing, and other high-accuracy machinery.
- High-Frequency Motors: Spindles for electric motors operating at very high rotational speeds.
- Industrial Pumps & Compressors: Where reliable performance under combined loads is critical.
