KF140FROA
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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KF140FROA Bearing Product Overview & Core Advantages
The KF140FROA is a high-performance thin section angular contact ball bearing engineered for applications demanding high precision and compact design. Manufactured to inch system standards, this single row bearing excels in handling combined radial and axial loads simultaneously due to its specified 30° contact angle. Its ABEC-1 precision class and optimized internal geometry ensure reliable operation in space-constrained assemblies where weight and cross-section are critical factors.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| KF | Kaydon® Reali-Slim® bearing series designation |
| 140 | Bore diameter: 14 inches |
| F | Flanged outer ring design |
| RO | Open bearing construction (no seals) |
| A | 30° contact angle for optimal axial load capacity |
KF140FROA Bearing Structural Features & Performance Benefits
This bearing features a brass cage that provides excellent guidance and stability at moderate speeds. The chrome steel construction of both rings and balls ensures high durability and wear resistance. With a radial dynamic load rating of 7043 lbf and axial static load capacity of 17950 lbf, it delivers robust performance in demanding applications. The pre-lubricated design with specified temperature range of -30°C to 110°C ensures immediate operation without additional preparation. The thin section design (0.75" width) combined with precise dimensional tolerances enables compact system integration while maintaining high rigidity and moment capacity (57140 lbf static load moment).
KF140FROA Bearing Typical Application Areas
The KF140FROA is ideally suited for:
- Robotics and automation systems requiring precise motion control
- Aerospace components and satellite mechanisms
- Medical equipment including CT scanners and surgical robots
- Semiconductor manufacturing equipment
- Radar and communication antenna positioning systems
- Precision instrumentation and optical positioning devices
