KF250AR0
3/4" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KF250AR0 Bearing Product Overview & Core Advantages
The KF250AR0 is a high-precision thin section angular contact ball bearing engineered for applications requiring exceptional rigidity and precise motion control. Designed with a 30° contact angle and single row construction, this bearing excels at supporting combined radial and axial loads simultaneously. Its Reali-Slim open design offers a compact cross-section, making it ideal for space-constrained, high-performance systems in robotics, aerospace, and precision instrumentation where weight and size optimization are critical.
KF250AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KF | Kaydon® Reali-Slim® bearing series |
| 250 | Bore diameter: 25.0 inches |
| A | 30° contact angle for optimal axial load capacity |
| R | Filling slot construction |
| 0 | Open (unsealed) design |
KF250AR0 Bearing Structural Features & Performance Benefits
This bearing's performance stems from its optimized thin section bearing architecture:
- High Rigidity & Load Capacity: The 30° contact angle and brass cage provide superior stability, enabling a radial dynamic load rating of 9585 lbf and handling significant moment loads (100200 lbf static load moment).
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore/OD tolerance: -0.0018" to 0") ensures smooth operation and accurate positioning.
- Material Excellence: Chrome steel rings and balls deliver high wear resistance and durability, while the brass cage ensures reliable performance at moderate speeds.
- Optimized Cross-Section: With only 0.75" width and minimal cross-section, it provides maximum space savings without compromising bearing performance.
KF250AR0 Bearing Typical Application Areas
The KF250AR0 is specifically designed for demanding applications where precision, compactness, and load carrying capacity are paramount:
- Robotics: Rotary joints and precision arm actuators
- Aerospace & Defense: Radar systems, gimbal mechanisms, and satellite positioning systems
- Medical Equipment: CT scanners, MRI systems, and surgical robotics
- Semiconductor Manufacturing: Wafer handling robots and precision stages
- Industrial Automation: Rotary tables, indexing heads, and precision gearboxes
