71913 ACDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71913 ACDGC/P4A Bearing Product Overview & Core Advantages
The 71913 ACDGC/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered with a 25° contact angle and manufactured to P4A tolerance class, this bearing excels at handling combined radial and axial loads simultaneously. Its phenolic resin cage and optimized internal geometry contribute to superior high-speed performance, making it an ideal solution for machine tool spindles and other precision machinery where reliability and dimensional stability are critical.
71913 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71913 | Basic bearing series and size designation |
| AC | Angular Contact design |
| D | High contact angle (25°) |
| GC | Universal matching bearing (SU designation) |
| P4A | High precision tolerance class |
71913 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with 25° contact angle provides excellent resistance to combined loads, supporting both radial forces and substantial axial thrust in one direction. With a dynamic load rating of 4388 lbf and static load rating of 3600 lbf, this bearing delivers reliable performance under demanding conditions.
High-Speed Capability: The phenolic resin cage ensures stable operation at high rotational speeds up to 36,000 rpm, while the optimized internal geometry minimizes friction and heat generation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0), this bearing guarantees exceptional running accuracy and minimal vibration for precision applications.
Universal Matching: Designed as Universal Matchable (SU), these bearings can be preloaded in sets of three to achieve specific stiffness requirements without selective matching.
71913 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-frequency applications
- Aerospace Components - Guidance systems and precision positioning mechanisms
- Medical Equipment - Dental handpieces and surgical tools requiring high precision
