KG042AR0
1" Constant Section Bearings
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Part No.
Part No.
KG042AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
3.83 lbs
Tolerance class
ABEC-1
ISO radial rating
10384 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4.25"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
6.25"
Outside diameter tolerance
-0.0008"– 0"
Width
1"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.992"
Outer Ring Dimensions
Outer ring large-side face inner diameter
5.741"
Outer ring small-side face inner diameter
5.508"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
6438 lbf
Radial static load rating
9950 lbf
Axial static load rating
14090 lbf
Static load moment
28730 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:
$ 255.08
/ each
In Stock
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KG042AR0 Bearing Product Overview & Core Advantages
The KG042AR0 is a high-precision thin section angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. Engineered with a single row construction and a 30° contact angle, it is optimized to handle significant combined loads, including high thrust loads in one direction. Its ABEC-1 tolerance class ensures reliable performance in precision machinery, while the inch-series dimensions (4.25" bore) make it ideal for space-constrained designs demanding high load capacity within a slim profile.
KG042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG042AR0 | Specific manufacturer model designation for this thin section angular contact bearing series. |
| Open | Indicates the bearing is supplied without seals or shields, allowing for custom lubrication schemes and facilitating high-speed operation. |
KG042AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 30° contact angle provides superior rigidity and enables the bearing to support high radial dynamic load ratings (6438 lbf) and exceptional axial static load ratings (14090 lbf).
- Precision Engineering: Manufactured to ABEC-1 precision class standards with tight dimensional tolerances, ensuring smooth operation and accurate rotational performance.
- Optimized Material Selection: Components made from Chrome Steel (rings and balls) and a Brass cage offer excellent durability, wear resistance, and stability for demanding applications.
- Thin Section Design: The "Reali-Slim" cross-section (1" width) provides a high load capacity relative to its small envelope, ideal for saving space and weight in compact assemblies.
KG042AR0 Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications including:
- Robotics and automation arms
- Aerospace control systems and actuators
- Medical equipment such as MRI and CT scanners
- Semiconductor manufacturing equipment
- Precision rotary tables and indexing heads
