KD047AR0
1/2" 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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KD047AR0 Bearing Product Overview & Core Advantages
The KD047AR0 is a high-performance Angular Contact Ball Bearing designed for applications requiring superior precision and load-handling capabilities. As a thin section bearing with an open construction, it excels in space-constrained environments while delivering exceptional performance. Its defining characteristic is the 30° contact angle, which enables it to efficiently support combined radial and axial loads simultaneously. Manufactured to ABEC-1 precision tolerances, this bearing is engineered for high reliability in demanding industrial applications, offering an optimal balance of strength, precision, and compact design.
KD047AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KD047 | Bore diameter code (4.75 inches) |
| A | Angular contact design with 30° contact angle |
| R | Reali-Slim thin section bearing series |
| 0 | Open construction (no seals or shields) |
KD047AR0 Bearing Structural Features & Performance Benefits
This bearing's optimized design delivers significant performance advantages:
- High Load Capacity: The single row angular contact configuration with 30° contact angle provides excellent combined load handling, with dynamic radial load rating of 1986 lbf and axial static load capacity of 4720 lbf.
- Precision Performance: Manufactured to ABEC-1 tolerance class with controlled radial internal clearance (0.0000 – 0.0005") ensures consistent, high-precision operation.
- Space-Saving Design: As a Reali-Slim thin section bearing with only 0.5" width, it maximizes performance in compact applications while maintaining structural integrity.
- Premium Materials: Constructed with chrome steel rings and brass cage for enhanced durability and reliable operation across the temperature range of -30°C to 110°C.
- Optimized Geometry: The specific shoulder diameters (inner: 5.12", outer small-side: 5.38", outer large-side: 5.49") ensure proper mounting and load distribution.
KD047AR0 Bearing Typical Application Areas
The KD047AR0 is ideally suited for precision applications requiring compact design and reliable performance:
- Robotics and Automation: Joint bearings in robotic arms and precision positioning systems
- Aerospace Components: Actuators, control surfaces, and instrumentation systems
- Medical Equipment: High-precision imaging devices and surgical robotics
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical and Instrumentation: Rotary tables, gimbals, and precision measurement devices
- Industrial Machinery where space constraints demand thin section bearings with reliable angular contact performance
