S71914 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The S71914 ACE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a double row angular contact ball bearing, it efficiently handles combined loads—simultaneous radial and bidirectional axial forces—within a compact design. Manufactured to P4A tolerance class with an extra light preload (Class A), this bearing delivers superior running accuracy, high rigidity, and smooth operation at high speeds, making it ideal for high-precision spindles and machinery.
S71914 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71914 | Basic bearing designation (70mm bore, 100mm OD, 32mm width) |
| ACE | 25° contact angle, phenolic cage, universal matching (SU) |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DGA | Sealed on both sides, pre-lubricated with grease |
Structural Features and Performance Benefits
High Rigidity and Load Capacity: The double row design provides exceptional rigidity, enabling stable support under heavy combined loads. With a 25° contact angle and optimized internal geometry, it effectively manages bidirectional axial loads and radial forces, supported by a radial dynamic load rating of 7605 lbf.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 28,000 rpm. The precision-ground chrome steel balls and raceways ensure smooth rotation and minimal vibration.
Maintenance-Free Operation: Integrated seals and factory-applied grease lubrication provide long-term, maintenance-free service. The bearing operates reliably within a temperature range of -30°C to 110°C, suitable for various industrial environments.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls on bore, outside diameter, and width, ensuring consistent performance in precision applications.
S71914 ACE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Instrumentation: Measuring devices, optical equipment
- Industrial Pumps and Compressors: High-speed rotary applications
- Medical Equipment: Dental handpieces, laboratory automation
- Robotics and Automation: Precision joints, rotary tables
