KA047XP3
1/4" Constant Section Bearings
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Part No.
Part No.
KA047XP3
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
0.23 lbs
Tolerance class
ABEC 3F
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
4.75"
Bore diameter tolerance
-0.0010" – 0"
Outside diameter
5.25"
Outside diameter tolerance
-0.0008" – 0"
Width
0.25"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
4.936"
Outer Ring Dimensions
Outer ring small-side face inner diameter
5.064"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
834 lbf
Radial static load rating
1520 lbf
Axial dynamic load rating
1350 lbf
Axial static load rating
3790 lbf
Dynamic load moment
1565 lbf
Static load moment
3790 lbf
Rated load moment
1 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:
$ 152.39
/ each
In Stock
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KA047XP3 Bearing Product Overview & Core Advantages
The KA047XP3 is a high-performance thin section bearing designed for applications demanding space optimization without compromising load capacity. As a Four Point Contact ball bearing, it excels at simultaneously handling combined radial and axial loads from any direction. Its Reali-Slim Open construction features an exceptionally low cross-section relative to its bore diameter, making it ideal for compact, weight-sensitive designs. Manufactured to ABEC 3F precision standards and pre-lubricated, this bearing delivers reliable, high-accuracy performance in demanding operational environments.
KA047XP3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KA047 | Indicates the specific bearing series and size designation (4.75" bore). |
| XP3 | Signifies the ABEC 3F precision tolerance class and the pre-lubricated state of the bearing. |
KA047XP3 Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The single row bearing is engineered with a raceway geometry that creates four points of contact between the balls and raceways. This unique structure allows it to support combined radial and axial loads efficiently in a compact, single-row package, simplifying assembly and saving space.
- High Load Capacity: Despite its thin section, the bearing offers substantial dynamic and static load ratings (Radial Dynamic: 834 lbf, Axial Dynamic: 1350 lbf), enabling it to handle significant moment loads (Dynamic Load Moment: 1565 lbf).
- Precision & Rigidity: Manufactured to ABEC 3F tolerance standards with a tight radial internal clearance (0.0000 – 0.0005"), it ensures smooth, precise rotation and high system rigidity.
- Durable Construction: Components made from Chrome Steel (rings and balls) and a Brass cage provide excellent durability, corrosion resistance, and stable operation at temperatures from -30°C to 110°C.
- Pre-Lubricated & Ready-to-Install: The bearing comes lubricated from the factory, reducing initial setup time and ensuring immediate, reliable performance.
KA047XP3 Bearing Typical Application Areas
- Robotics and Automation: Ideal for robotic joints, rotary actuators, and manipulators where compact size and high moment load capacity are critical.
- Aerospace and Defense: Used in gimbal systems, radar platforms, and control surfaces that require lightweight, precision components.
- Medical Equipment: Suitable for CT scanners, MRI machines, and surgical robots demanding high accuracy and reliability.
- Semiconductor Manufacturing: Applied in precision stages, wafer handling robots, and other cleanroom equipment.
- Optical and Instrumentation Systems: Perfect for rotary stages in measuring devices and positioning systems where minimal deflection is required.
