K20020AR0
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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K20020AR0 Bearing Product Overview & Core Advantages
The K20020AR0 is a single row angular contact ball bearing designed for applications requiring high precision and reliable performance under combined loads. As part of the Reali-Slim mm Metric Bearings series, it features a thin cross-section that enables compact and lightweight designs. Its 30° contact angle is optimized to support significant axial loads in one direction, in addition to radial loads, making it an ideal choice for high-rigidity applications where space is at a premium. Manufactured to ABEC-1 precision tolerances, this bearing delivers consistent performance and long service life.
K20020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K | Indicates a metric series thin-section bearing |
| 200 | Bore diameter: 200 mm |
| 20 | Outside diameter: 240 mm (cross-section: 20 mm) |
| A | 30° contact angle design |
| R0 | Standard radial internal clearance |
K20020AR0 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides excellent rigidity and can accommodate substantial combined radial and axial loads. With a radial dynamic load rating of 5966 lbf and axial static load rating of 14230 lbf, this bearing delivers reliable performance in demanding applications.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore diameter tolerance: -0.03mm to 0), ensuring precise operation and minimal runout. The brass cage provides superior guidance and stability for the balls, contributing to smooth rotation.
Material Excellence: Constructed from chrome steel for both rings and balls, offering high hardness, wear resistance, and durability. The thin-section bearing dimensions (200mm bore × 240mm OD × 20mm width) enable space-saving designs without compromising performance.
Optimized Performance Range: Suitable for operating temperatures from -30°C to 110°C and comes pre-lubricated for immediate use. The open seal type allows for custom lubrication solutions based on specific application requirements.
K20020AR0 Bearing Typical Application Areas
The K20020AR0 angular contact ball bearing is ideally suited for:
- Robotics and automation systems - where compact size and high precision are critical
- Medical equipment - requiring smooth, precise motion control
- Aerospace components - demanding lightweight, high-reliability bearings
- Semiconductor manufacturing equipment - needing high precision and contamination control
- Optical positioning systems - requiring minimal deflection and high accuracy
- Industrial machinery - where space constraints necessitate thin-section bearings
