KG120XP0
1" Constant Section Bearings
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Part No.
Part No.
KG120XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
9.3 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
12"
Bore diameter tolerance
-0.0014"– 0"
Outside diameter
14"
Outside diameter tolerance
-0.0014"– 0"
Width
1"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
12.742"
Outer Ring Dimensions
Outer ring small-side face inner diameter
13.258"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
13315 lbf
Radial static load rating
21340 lbf
Axial dynamic load rating
21280 lbf
Axial static load rating
53350 lbf
Dynamic load moment
64935 lbf
Static load moment
138700 lbf
Rated load moment
64 ft-lbf
Lubrication
Lubricated
Radial internal clearance
0.0000 – 0.0005"
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 284.78
/ each
In Stock
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KG120XP0 Bearing Product Overview & Core Advantages
The KG120XP0 is a high-performance thin-section four-point contact ball bearing designed for applications requiring exceptional space optimization and load capacity. This single-row bearing features an open design and is engineered to simultaneously handle combined radial and axial loads from any direction. Manufactured to ABEC-1 precision tolerances, it delivers reliable performance in compact assemblies where high moment load capacity is critical. Its inch-series dimensions (12" bore, 14" OD, 1" width) make it ideal for replacing bulky standard bearings with a more efficient, lightweight solution.
KG120XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG120XP0 | Manufacturer's specific model designation for this thin-section, four-point contact bearing series. |
| Open (Construction) | No integral seals or shields, allowing for custom lubrication schemes and higher speed potential. Requires a clean operating environment. |
| Four Point Contact | The ball raceway geometry allows each ball to make contact at four points, enabling the bearing to support combined moment, radial, and axial loads efficiently in a single row. |
| ABEC-1 | Specifies the precision tolerance class, ensuring consistent running accuracy and reduced vibration for general precision applications. |
KG120XP0 Bearing Structural Features & Performance Benefits
- High Moment Load Capacity: The unique four-point contact design is the core feature, enabling the KG120XP0 to support a high Dynamic Load Moment of 64,935 lbf and a Static Load Moment of 138,700 lbf. This eliminates the need for complex multi-bearing arrangements in many applications.
- Superior Load Handling: Engineered to withstand significant combined loads, with dynamic ratings of 13,315 lbf (radial) and 21,280 lbf (axial). The robust chrome steel construction for both rings and balls ensures long-term durability under heavy loads.
- Space-Saving Design: As a Reali-Slim thin-section bearing, it provides a large bore relative to its cross-section, maximizing design space for shafts and other components while reducing overall system weight and envelope.
- Precision & Stability: The brass cage provides excellent guidance and stability at moderate speeds, while the tight radial internal clearance (0.0000 – 0.0005") and ABEC-1 tolerances contribute to smooth, precise operation.
KG120XP0 Bearing Typical Application Areas
- Robotics: Rotary joints, robot arms, and end-effectors where compact size and high moment load capacity are paramount.
- Aerospace & Defense: Radar platforms, gimbal systems, and flight control mechanisms requiring lightweight, precision components.
- Machine Tool: Rotary tables, indexers, and CNC positioning systems that demand high accuracy and stiffness.
- Medical Equipment: CT scanners, MRI machines, and surgical robots utilizing large, precise rotations.
- Semiconductor Manufacturing: Wafer handling robots and precision stages where clean, reliable motion is essential.
