KB180AR0
5/16" 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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KB180AR0 Bearing Product Overview & Core Advantages
The KB180AR0 is a thin-section angular contact ball bearing engineered for applications demanding high precision and space optimization. As part of the Reali-Slim Open Bearings series, this single-row bearing excels in handling combined loads, specifically designed to support significant axial loads in one direction alongside radial loads, thanks to its 30° contact angle. Its inch-series construction with a large 18-inch bore and remarkably slim 0.3125-inch cross-section makes it an ideal solution for compact, high-rigidity assemblies in robotic and aerospace systems where weight and space are critical constraints.
KB180AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KB | Indicates the Reali-Slim series of thin-section bearings. |
| 180 | Specifies the bore diameter in inches (18.0"). |
| A | Denotes the 30° contact angle, optimized for high axial load capacity. |
| R | Signifies Brass cage material for enhanced strength and speed capability. |
| 0 | Indicates Open (non-shielded) construction, allowing for custom lubrication schemes. |
KB180AR0 Bearing Structural Features & Performance Benefits
This bearing's performance is defined by its specialized construction. The single-row design with a 30° contact angle provides exceptional stiffness and is precisely engineered to handle high axial static loads (5510 lbf). The use of a brass cage ensures stability and smooth operation at moderate speeds. Manufactured to ABEC-1 precision tolerances, it guarantees consistent running accuracy. The chrome steel rings and balls provide high durability and fatigue resistance. The thin-section design minimizes weight (1.26 lbs) and space requirements without compromising on the radial dynamic load rating of 2038 lbf, making it a high-performance component for weight-sensitive applications.
KB180AR0 Bearing Typical Application Areas
- Robotics: Rotary joints and precision arms where compactness and high moment load capacity (24990 lbf) are vital.
- Aerospace & Defense: Gimbals, control mechanisms, and satellite positioning systems requiring lightweight, high-rigidity components.
- Medical Equipment: High-precision imaging devices and surgical robots.
- Semiconductor Manufacturing: Wafer handling and precision stages.
- Industrial Automation: Rotary tables and indexing units.
