KC140AR0
3/8" 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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KC140AR0 Bearing Product Overview & Core Advantages
The KC140AR0 is a high-precision thin section angular contact ball bearing designed for applications requiring exceptional rigidity and precise motion control. Manufactured to ABEC-1 tolerance standards, this single-row bearing excels in handling combined loads (simultaneous radial and axial forces) due to its specified 30° contact angle. Its Reali-Slim open construction provides a compact, lightweight solution with a large diameter relative to its cross-section, making it ideal for space-constrained, high-performance machinery where weight reduction is critical.
KC140AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KC140 | Indicates the bearing series and size designation for thin section bearings with 14" bore diameter |
| A | Signifies angular contact design with 30° contact angle |
| R0 | Denotes specific internal design features and radial internal clearance group |
KC140AR0 Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The single-row angular contact design with 30° contact angle provides optimal stiffness for moment loads, supported by ABEC-1 precision tolerances for consistent performance in precision applications.
Superior Load Capacity: Engineered to handle significant combined loads, featuring a radial dynamic load rating of 2347 lbf and axial static load capacity of 6170 lbf, making it suitable for applications with complex loading conditions.
Optimized Material Construction: Manufactured from chrome steel for both rings and balls, with a brass cage for enhanced durability and stable operation under varying temperatures (-30°C to 110°C).
Space-Efficient Design: As part of the Reali-Slim series, it offers a minimal cross-section (0.375" width) while maintaining large bore diameter capabilities, providing optimal space utilization without compromising performance.
KC140AR0 Bearing Typical Application Areas
- Robotics and Automation: Robot arms, rotary joints, and precision positioning systems requiring high moment load capacity
- Aerospace & Defense: Radar systems, gimbal mechanisms, and satellite positioning equipment
- Medical Equipment: CT scanners, MRI machines, and surgical robotics where precision and reliability are critical
- Semiconductor Manufacturing: Wafer handling equipment, precision stages, and inspection machinery
- Industrial Machinery: Rotary tables, indexing devices, and precision gearboxes requiring thin section bearings
