KC120XP0
3/8" Constant Section Bearings
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Part No.
Part No.
KC120XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
1.25 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
12.75"
Outside diameter tolerance
-0.0014"– 0"
Width
0.375"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
12.277"
Outer Ring Dimensions
Outer ring small-side face inner diameter
12.473"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
2622 lbf
Radial static load rating
5950 lbf
Axial dynamic load rating
4420 lbf
Axial static load rating
14880 lbf
Dynamic load moment
12174 lbf
Static load moment
36830 lbf
Rated load moment
12 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:
$ 222.74
/ each
In Stock
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KC120XP0 Bearing Product Overview & Core Advantages
The KC120XP0 is a premium Four Point Contact Ball Bearing engineered for applications requiring exceptional load capacity in a compact, thin-section design. As part of the Reali-Slim Open Bearings series, this inch-series bearing features a single row construction that delivers high rigidity and can simultaneously support significant radial loads, axial loads in both directions, and moment loads. Its precision ABEC-1 tolerance and optimized geometry make it ideal for space-constrained, high-performance machinery demanding reliability and accuracy.
KC120XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KC120XP0 | Specific manufacturer model designation for this thin-section, four-point contact bearing. |
| Open | No integral seals or shields, allowing for custom lubrication schemes and maximum speed capability. |
| Four Point Contact | The ball raceway geometry allows each ball to contact the raceways at four points, enabling the bearing to support combined radial, axial, and moment loads. |
KC120XP0 Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The four-point contact design and single row construction provide exceptional rigidity, enabling the bearing to handle high dynamic load moments (12,174 lbf) and static load moments (36,830 lbf) within an extremely slim cross-section (0.375" width).
- Combined Load Capability: Engineered to support complex combined loads, including substantial axial static loads (14,880 lbf) and radial static loads (5,950 lbf), making it a versatile solution for multi-directional force applications.
- Precision & Speed: Manufactured to ABEC-1 precision tolerances with a controlled radial internal clearance (0.0000 – 0.0005"). The open design and brass cage contribute to stable operation and suitability for high rotational speeds.
- Durable Material Construction: Components made from Chrome Steel (rings and balls) and a Brass cage ensure high strength, wear resistance, and long service life in demanding environments.
KC120XP0 Bearing Typical Application Areas
This bearing is ideally suited for applications where a large diameter must be accommodated within a minimal axial space, including:
- Robotics: Robot joints and rotary actuators.
- Aerospace & Defense: Radar platforms, gimbal systems, and missile guidance systems.
- Machine Tool: Rotary tables, indexers, and CNC rotary axes.
- Medical Equipment: CT scanners and advanced imaging systems.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
