S71910 ACE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71910 ACE/P4ADBA Bearing Product Overview & Core Advantages
The S71910 ACE/P4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This duplex back-to-back (DB) matched set delivers superior performance by providing high rigidity and the ability to withstand combined radial and axial loads from both directions. Manufactured to P4A tolerance class and featuring a phenolic cage, it is engineered for high-speed operation and stable performance in precision machinery.
S71910 ACE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71910 | Precision angular contact ball bearing series with 50mm bore diameter |
| ACE | 25° contact angle with enhanced internal design |
| P4A | High precision tolerance class with restricted runout tolerances |
| DB | Duplex Back-to-Back arrangement for high moment rigidity |
| A | Extra light preload for minimal deflection under light loads |
S71910 ACE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and provides exceptional stability. With a 25° contact angle and optimized internal geometry, this bearing efficiently handles combined radial and axial loads in both directions, making it ideal for applications requiring precise shaft positioning.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with tight dimensional control (bore diameter tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration. The phenolic cage contributes to reduced friction and enables high-speed operation up to 34,000 rpm, while the grease lubrication provides reliable performance across a wide temperature range (-30°C to 110°C).
Enhanced Durability: Constructed from chrome steel for both rings and balls, this bearing offers excellent wear resistance and long service life. The matched set configuration ensures consistent performance and simplifies installation in precision applications.
S71910 ACE/P4ADBA Bearing Typical Application Areas
- Machine tool spindles for high-precision machining centers
- High-speed machining equipment requiring minimal vibration
- Precision grinding spindles and other finishing machinery
- Industrial robotics and automation systems
- Medical equipment requiring high accuracy and reliability
- Aerospace components and navigation systems
- Optical instrument positioning mechanisms
