KG220AR0
1" 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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KG220AR0 Bearing Product Overview & Core Advantages
The KG220AR0 is a high-performance thin-section angular contact ball bearing designed for applications demanding exceptional precision and space optimization. Engineered in inch dimensions with a 30° contact angle, this single-row bearing excels at supporting combined radial and axial loads simultaneously. Its Reali-Slim Open construction provides a superior stiffness-to-weight ratio, making it ideal for compact, high-accuracy systems requiring reliable performance under complex loading conditions.
KG220AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG | Kilian Group bearing series identifier |
| 220 | Bore diameter code (22") |
| A | Angular contact design with 30° contact angle |
| R | Reali-Slim thin-section construction |
| 0 | Open (unsealed) design variant |
KG220AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: The 1" cross-section between 22" bore and 24" OD provides significant space and weight savings while maintaining structural integrity. The brass cage ensures stable ball guidance and reliable operation.
Superior Load Capacity: With a radial dynamic load rating of 14,290 lbf and axial static load rating of 37,712 lbf, this bearing handles substantial combined loads effectively. The 30° contact angle is optimized for applications requiring significant axial load support.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional controls (bore tolerance: -0.0018"– 0"), ensuring consistent performance in precision applications. The minimal radial internal clearance (0.0000 – 0.0005") provides precise rotational characteristics.
Material Excellence: Constructed from chrome steel for both rings and balls, delivering excellent wear resistance and durability across the operating temperature range of -30°C to 110°C.
KG220AR0 Bearing Typical Application Areas
- Aerospace & Defense: Gimbal systems, radar positioning equipment, satellite mechanisms
- Robotics: Robotic arm joints, precision positioning stages, rotary actuators
- Medical Equipment: CT scanner gantries, surgical robot joints, diagnostic imaging systems
- Semiconductor Manufacturing: Wafer handling robots, precision stages, metrology equipment
- Industrial Automation: Rotary tables, indexing heads, precision spindles
