K18020AR0
20mm 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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K18020AR0 Bearing Product Overview & Core Advantages
The K18020AR0 is a single row angular contact ball bearing engineered for applications requiring high precision and reliable performance under combined loads. This thin-section bearing features a compact design with a 180 mm bore and a 20 mm width, offering a space-saving solution without compromising on load capacity. Its primary advantage lies in its ability to support significant radial loads and axial loads in one direction simultaneously, thanks to its defined 30° contact angle. Manufactured to ABEC-1 precision tolerances, it ensures smooth operation and is pre-lubricated for immediate use, making it ideal for high-reliability applications where precision and compactness are critical.
K18020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K | Indicates a thin-section bearing from the Reali-Slim metric series. |
| 180 | Nominal bore diameter in millimeters (180 mm). |
| 20 | Nominal outside diameter code (corresponds to 220 mm). |
| A | Signifies a 30° contact angle, optimized for handling combined radial and axial loads. |
| R0 | Specifies the radial internal clearance group (C0 standard clearance). |
K18020AR0 Bearing Structural Features & Performance Benefits
This bearing's performance is derived from its specific construction and material selection:
- High Load Capacity & Rigidity: The single row design with a 30° contact angle provides excellent resistance to combined loads. It offers a high radial dynamic load rating of 5600 lbf and a substantial axial static load rating of 13225 lbf, ensuring stable operation under demanding conditions.
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, resulting in smooth, low-vibration running essential for precision applications.
- Durable Material Composition: Rings and balls made from Chrome Steel provide high hardness and wear resistance. The brass cage ensures reliable guidance of the balls, contributing to high-speed capability and operational stability.
- Optimized for Thin-Section Applications: With a cross-section that is slim relative to its bore diameter, this bearing is ideal for saving space and weight in compact machinery designs without sacrificing performance.
K18020AR0 Bearing Typical Application Areas
The K18020AR0 angular contact ball bearing is suited for a variety of high-precision and compact machinery, including:
- Robotics and automation arms (for precision joint movement)
- Aerospace control mechanisms and actuation systems
- Medical Equipment such as CT scanners and surgical robots
- Semiconductor Manufacturing equipment (e.g., wafer handling robots)
- Precision Instrumentation and optical positioning systems
