71910 ACE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71910 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 71910 ACE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable (SU) bearing, it can be paired with another identical bearing in various configurations to optimize preload and rigidity. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for high-precision spindles and other critical machinery. The bearing is pre-lubricated and features an open design, allowing for customized sealing and lubrication solutions to meet specific operational requirements.
71910 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series and size designation (50mm bore, 72mm OD, 24mm width) |
| ACE | Specific internal design and contact angle (25°) |
| P4A | High precision tolerance class for superior running accuracy |
| DGA | Universal matchable (SU) designation, indicating the bearing is supplied as one of a pair for preload optimization |
71910 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance class with extremely tight dimensional tolerances, this bearing provides exceptional running accuracy and minimizes vibration. The 25° contact angle and universal matchable design enable optimal preload configuration when paired, resulting in superior system rigidity.
Combined Load Capacity: As an angular contact ball bearing, it efficiently handles combined radial and axial loads simultaneously. The optimized internal geometry distributes loads evenly across the 21 precision balls.
High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high speeds, contributing to the impressive limiting speed of 46,000 rpm. This makes it suitable for demanding high-speed applications.
Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance within the operating temperature range of -30°C to 110°C.
71910 ACE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling spindles
- High-Speed Motors: Precision electric motors and servo drives requiring minimal runout
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
