S71907 ACD/P4AQBCC
Sealed Super Precision Angular Contact Ball Bearings
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S71907 ACD/P4AQBCC Bearing Product Overview & Core Advantages
The S71907 ACD/P4AQBCC is a precision quadruplex back-to-back angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This P4A tolerance class metric bearing features a sealed design with phenolic cage and pre-lubricated grease, enabling it to handle combined radial and axial loads simultaneously. Its compact 35 mm bore diameter and optimized 25° contact angle make it ideal for high-precision, high-reliability machinery where moderate preload and superior running accuracy are critical.
S71907 ACD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71907 | Precision angular contact ball bearing series with 35mm bore |
| ACD | 25° contact angle design optimized for high rigidity |
| P4A | High precision tolerance class with enhanced running accuracy |
| QBCC | Quadruplex Back-to-Back arrangement with Class C preload |
S71907 ACD/P4AQBCC Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The quadruplex back-to-back arrangement provides maximum system stiffness, essential for applications requiring minimal deflection under heavy combined loads.
High Load Capacity: With a radial dynamic load rating of 5445 lbf and static load rating of 5512 lbf, this bearing delivers reliable performance in demanding operating conditions.
Precision Performance: The P4A tolerance class ensures superior running accuracy, while the phenolic cage contributes to smooth operation at the limiting speed of 56,000 rpm.
Maintenance-Free Operation: The sealed design with factory-applied grease provides long-term lubrication within the temperature range of -30°C to 110°C, reducing maintenance requirements.
S71907 ACD/P4AQBCC Bearing Typical Application Areas
- High-precision machine tool spindles requiring maximum rigidity and accuracy
- Industrial robotics and automation systems demanding precise positioning
- Medical equipment and dental handpieces needing reliable high-speed operation
- Aerospace components and instrumentation requiring precision angular contact bearings
- High-speed machining centers and grinding machine applications
