KC040AR0
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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KC040AR0 Bearing Product Overview & Core Advantages
The KC040AR0 is a high-performance thin section angular contact ball bearing designed for applications requiring exceptional precision and space optimization. Featuring a single row construction with a 30° contact angle, this bearing excels at handling combined radial and axial loads simultaneously. Manufactured to ABEC-1 precision standards with inch dimensions (4" bore × 4.75" OD × 0.375" width), it delivers reliable performance in compact envelope applications. The open design allows for custom lubrication schemes while maintaining high rigidity and precise rotational characteristics.
KC040AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| KC040 | Bearing series designation for thin section angular contact bearings | Indicates optimized thin cross-section design |
| A | Angular contact design | 30° contact angle for combined load capacity |
| R0 | Radial internal clearance specification | 0.0000 - 0.0005" clearance for precision applications |
KC040AR0 Bearing Structural Features & Performance Benefits
Advanced Material Construction: Manufactured from chrome steel for both rings and balls with a brass cage, ensuring dimensional stability and extended service life under demanding conditions.
Optimized Load Capacity: The 30° contact angle enables superior performance in handling combined loads, with rated capacities of 1153 lbf (dynamic radial), 2550 lbf (static radial), and 2770 lbf (static axial).
Precision Engineering: Built to ABEC-1 tolerance class with tight dimensional controls (bore: -0.0008"–0", OD: -0.0006"–0", width: +.000 –.005") for consistent performance in precision applications.
Space-Efficient Design: As part of the Reali-Slim Open Bearings series, it provides maximum load capacity within minimal cross-section (0.375" width), ideal for weight and space-constrained applications.
KC040AR0 Bearing Typical Application Areas
- Robotics and Automation: Robotic arms, rotary joints, and precision positioning systems
- Aerospace Systems: Guidance mechanisms, actuator systems, and instrumentation
- Medical Equipment: Surgical robots, imaging systems, and diagnostic instruments
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Industrial Machinery: Rotary tables, indexing heads, and precision spindles
