KC042AR0
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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KC042AR0 Bearing Product Overview & Core Advantages
The KC042AR0 is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. Featuring a single-row construction with a 30° contact angle, this bearing excels at handling combined loads—simultaneously supporting substantial radial loads and high thrust loads in one direction. Its Reali-Slim design provides maximum load capacity within minimal cross-sections, making it ideal for compact, weight-sensitive machinery. Manufactured to ABEC-1 precision standards with chrome steel components, it delivers reliable performance in demanding operational environments.
KC042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KC042 | Bearing series designation for thin-section angular contact bearings |
| A | 30° contact angle design for optimal thrust capacity |
| R | Reali-Slim thin-section construction |
| 0 | Open design without seals or shields |
KC042AR0 Bearing Structural Features & Performance Benefits
Thin-Section Design: The Reali-Slim construction with 0.375" width provides significant space and weight savings while maintaining high load capacity, enabling compact machinery designs.
High Load Capacity: With a 30° contact angle and optimized raceway geometry, this bearing delivers exceptional combined load performance, featuring a radial dynamic load rating of 1194 lbf and axial static load rating of 2880 lbf.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional control (bore tolerance: -0.0008" to 0"), ensuring consistent performance and smooth operation in precision applications.
Superior Materials: Constructed with chrome steel rings and balls combined with a brass cage for durability, corrosion resistance, and stable operation across the temperature range of -30°C to 110°C.
Optimized Internal Clearance: The radial internal clearance of 0.0000-0.0005" provides precise running characteristics while accommodating thermal expansion in high-speed applications.
KC042AR0 Bearing Typical Application Areas
- Robotics and Automation: Rotary joints, manipulator arms, and precision positioning systems
- Aerospace Equipment: Guidance systems, actuator mechanisms, and satellite components
- Medical Devices: Surgical robots, imaging equipment, and diagnostic instruments
- Semiconductor Manufacturing: Wafer handling equipment, precision stages, and inspection machinery
- Industrial Machinery: Rotary tables, indexing heads, and precision spindles requiring compact bearing solutions
