KA040XP0
1/4" Constant Section Bearings
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Part No.
Part No.
KA040XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
0.19 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
4"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
4.5"
Outside diameter tolerance
-0.0006"– 0"
Width
0.25"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
4.186"
Outer Ring Dimensions
Outer ring small-side face inner diameter
4.314"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
756 lbf
Radial static load rating
1290 lbf
Axial dynamic load rating
1210 lbf
Axial static load rating
3220 lbf
Dynamic load moment
1205 lbf
Static load moment
2740 lbf
Rated load moment
1205 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:
$ 52.35
/ each
In Stock
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KA040XP0 Bearing Product Overview & Core Advantages
The KA040XP0 is a precision-engineered Four Point Contact thin section ball bearing designed for applications requiring exceptional space efficiency and high load capacity. As part of the Reali-Slim Open Bearings series, this single-row bearing is characterized by its compact cross-section, with a width of only 0.25", enabling lightweight and compact designs. Its primary advantage lies in its ability to simultaneously support significant combined loads, including radial, axial, and moment loads, making it an ideal solution for high-precision, high-reliability systems where space is at a premium.
KA040XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KA | Indicates the Reali-Slim series, a family of thin section bearings. |
| 040 | Specifies the nominal bore diameter in inches (4.0"). |
| X | Denotes a cross-section series, defining the relationship between bore, outside diameter, and width. |
| P0 | Specifies the ABEC-1 tolerance class, ensuring standard precision for reliable performance. |
KA040XP0 Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The raceway geometry allows the bearing to carry combined radial, axial, and moment loads efficiently in a single, compact unit, simplifying assembly and reducing the need for multiple bearing arrangements.
- Thin Section Construction: With a minimal cross-section (0.25" width), this bearing significantly reduces weight and space requirements, which is critical for robotics, aerospace, and medical equipment.
- High Load Capacity: Engineered to handle substantial dynamic and static loads, including an axial static load rating of 3220 lbf and a rated load moment of 1205 ft-lbf.
- Precision & Reliability: Manufactured to ABEC-1 tolerance standards with a controlled radial internal clearance, ensuring consistent performance and smooth operation.
- Durable Materials: Constructed from Chrome Steel rings and balls with a Brass cage for strength, corrosion resistance, and operational stability across a temperature range of -30°C to 110°C.
KA040XP0 Bearing Typical Application Areas
- Robotics: Rotary joints, actuators, and manipulator arms where compactness and high moment load capacity are essential.
- Aerospace & Defense: Gimbals, control mechanisms, and sensor platforms requiring lightweight, high-precision components.
- Medical Equipment: CT scanners, surgical robots, and diagnostic instruments demanding smooth, precise motion in a confined space.
- Semiconductor Manufacturing: Precision stages and wafer handling equipment.
- Industrial Automation: Rotary tables, indexing heads, and other precision motion control systems.
