725C
Miniature Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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725C Bearing Product Overview & Core Advantages
The 725C is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and reliability. Engineered to accommodate combined loads (simultaneous radial and axial forces), this compact bearing features a 15° contact angle optimized for high-speed operation. Available in both steel and ceramic ball variants with multiple cage material options, it delivers exceptional performance in demanding environments. Its universal matchable (SU) design allows for flexible mounting arrangements, while P5/P4 (ABEC-5/ABEC-18) precision grades ensure superior running accuracy.
725C Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Meaning | Performance Benefit |
|---|---|---|
| 725C | Basic model designation for angular contact bearing series | Standardized identification for engineering specifications |
| Sealed/Open | Configuration options for contamination protection | Flexibility for various operating environments |
| SU | Universal Matchable arrangement | Simplified mounting and preload adjustment |
| P5/P4 | ABEC-5/ABEC-18 precision classes | Enhanced running accuracy and reduced vibration |
725C Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The optimized internal geometry and 15° contact angle provide excellent resistance to combined loads, with a dynamic load rating of 397.9 lbf and static load rating of 155.11 lbf, ensuring stable operation under demanding conditions.
Superior High-Speed Performance: With grease-limited speed of 8000 r/min and oil-limited speed reaching 85000 r/min, the bearing accommodates various lubrication methods. Available nylon and phenolic cages contribute to reduced friction and enhanced rotational stability at high velocities.
Precision Engineering: Manufactured to ABEC-5/P5 and ABEC-18/P4 tolerance classes, the 725C delivers exceptional running accuracy and minimal vibration, making it ideal for precision applications requiring tight tolerances.
Configuration Flexibility: The universal matchable design allows for versatile mounting arrangements and preload options, while the compact bearing dimensions (5mm bore × 16mm OD × 5mm width) enable space-saving designs.
725C Bearing Typical Application Areas
- Precision Machine Tool Spindles - High-speed machining centers and grinding applications
- Medical Equipment - Dental handpieces and surgical tools requiring precision and reliability
- Semiconductor Manufacturing - Wafer handling robots and precision positioning systems
- Aerospace Instruments - Guidance systems and avionics requiring high accuracy
- High-Speed Automation - Robotics and pick-and-place systems demanding rapid positioning
- Optical Instruments - Precision scanning and measurement equipment
