S71913 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71913 ACE/P4ADGA Bearing Product Overview & Core Advantages
The S71913 ACE/P4ADGA is a super-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a 25° contact angle and extra light preload (Class A), making it ideal for high-speed spindle applications where minimal deflection and thermal stability are critical. Its sealed design with pre-applied grease lubrication ensures long-term performance and reliability in precision machinery.
S71913 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Super-precision bearing |
| 7 | Angular contact ball bearing |
| 1913 | Bore diameter: 65 mm, Outside diameter: 90 mm, Width: 26 mm |
| ACE | 25° contact angle, phenolic cage, universal matchable |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DGA | Sealed on both sides with grease lubrication |
S71913 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance class with extra light preload, this bearing delivers exceptional running accuracy and minimal deflection under load. The 25° contact angle provides optimal stiffness for combined radial and axial loads.
High-Speed Capability: The phenolic resin cage ensures stable operation at limiting speeds up to 31,000 rpm, while the optimized internal geometry reduces friction and heat generation.
Superior Load Capacity: With a dynamic load rating of 5,738 lbf and static load rating of 5,220 lbf, this bearing handles significant combined loads in high-performance applications.
Maintenance-Free Operation: The integral seals and factory-applied grease provide effective contamination protection and extended service life without relubrication.
S71913 ACE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Instrumentation: Measuring equipment, optical devices
- Industrial Robotics: High-precision robot joints and actuators
- Medical Equipment: Dental handpieces, surgical tools
- Aerospace Systems: Gyroscopes, navigation instruments
