KG-120 XP0
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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KG-120 XP0 Bearing Product Overview & Core Advantages
The Reali-Slim Open Bearing in Four Point Contact design represents a specialized thin section bearing engineered for applications demanding maximum load capacity within minimal cross-sectional space. This single row ball bearing is distinguished by its ability to support significant combined loads—simultaneously handling radial, axial, and moment loads with high efficiency. Manufactured to ABEC-1 precision tolerances and constructed from high-grade chrome steel, it delivers reliable performance in compact, weight-sensitive assemblies. Its open design facilitates custom lubrication strategies for optimized service life.
KG-120 XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Feature | Code/Value | Technical Significance |
|---|---|---|
| Bearing Series | Reali-Slim | Indicates a thin section bearing with a standardized, slim cross-section. |
| Seal Type | Open | No integral seals; allows for custom lubrication and high-speed operation. |
| Load Direction | Four Point Contact | The ball raceway geometry enables the bearing to support combined radial, axial, and moment loads efficiently in a single row. |
| Tolerance Class | ABEC-1 | Defines standard precision levels for dimensional accuracy and running performance. |
KG-120 XP0 Bearing Structural Features & Performance Benefits
Four Point Contact Design: This is the core structural feature. The raceway geometry creates four points of contact between the ball and the raceways under load. This design allows a single row bearingload moment capacity (64 ft-lbf rated) and simplifying assembly.
High Load Capacity: The design yields impressive dynamic and static load ratings (13,315 lbf radial dynamic, 21,340 lbf radial static, 21,280 lbf axial dynamic, and a substantial 53,350 lbf axial static), making it suitable for applications with significant combined loads.
Thin Section Construction: With a consistent 1" cross-section (width) and a large 12" bore, this bearing is engineered to save space and weight (9.3 lbs) without compromising structural integrity or performance, ideal for robotic arms, aerospace mechanisms, and medical equipment.
Precision & Material Quality: Manufactured from chrome steel components (rings and balls) with a brass cage for stability and strength, and held to ABEC-1 tolerances, it ensures smooth, reliable operation and long service life.
KG-120 XP0 Bearing Typical Application Areas
- Robotics: Rotary joints and actuator arms where compact size, low weight, and high moment load capacity are critical.
- Aerospace & Defense: Radar platforms, gimbal systems, and flight control mechanisms requiring precision and reliability.
- Medical Equipment: CT scanners, MRI machines, and surgical robots demanding smooth, precise rotation.
- Industrial Automation: Rotary tables, indexing heads, and precision gearboxes.
- Optics and Instrumentation: Positioning stages and tracking devices where minimal deflection under load is essential.
