KA020BR0K
1/4" Constant Section Bearings
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Part No.
Part No.
KA020BR0K
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
0.1 lbs
Tolerance class
ABEC-1
ISO radial rating
1065 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
2"
Bore diameter tolerance
-0.0006"– 0"
Outside diameter
2.5"
Outside diameter tolerance
-0.0005"– 0"
Width
0.25"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
2.186"
Outer Ring Dimensions
Outer ring large-side face inner diameter
2.369"
Outer ring small-side face inner diameter
2.314"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
450 lbf
Radial static load rating
790 lbf
Axial static load rating
960 lbf
Static load moment
2280 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:
$ 46.88
/ each
In Stock
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KA020BR0K Bearing Product Overview & Core Advantages
The KA020BR0K is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. This single-row bearing excels at handling combined loads, efficiently supporting both radial and significant axial loads in one direction due to its specified 30° contact angle. Manufactured to ABEC-1 precision standards with a compact cross-section (2" bore, 2.5" OD, 0.25" width), it is ideal for high-reliability systems where weight and space are critical constraints, offering a robust solution with a radial dynamic load rating of 450 lbf.
KA020BR0K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| K | Indicates an inch-series bearing. |
| A02 | Specifies the 2-inch bore diameter. |
| 0B | Denotes the cross-section series (Light). |
| R0 | Signifies a 30° contact angle. |
| K (Suffix) | Indicates a brass cage construction. |
KA020BR0K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row angular contact design with a 30° contact angle provides high rigidity and is optimized to handle significant combined radial and axial loads (Radial Static: 790 lbf, Axial Static: 960 lbf).
- Precision Performance: Built to ABEC-1 tolerance class with tight dimensional tolerances, ensuring smooth operation and accurate positioning in precision assemblies.
- Space-Saving Design: As a Reali-Slim thin-section bearing, it offers a maximum cross-section utilization, critical for compact and lightweight machinery designs.
- Durable Construction: Components made from chrome steel (rings and balls) and a robust brass cage ensure longevity and reliable performance under demanding conditions.
- Optimized for Preload: The angular contact design and controlled radial internal clearance make this bearing suitable for preload arrangements, enhancing system stiffness.
KA020BR0K Bearing Typical Application Areas
This bearing is ideally suited for applications where a slim profile, precision, and the ability to handle combined loads are paramount. Key industries and equipment include:
- Robotics: Rotary joints and arm actuators.
- Aerospace & Defense: Guidance systems, gimbals, and control surfaces.
- Medical Equipment: MRI and CT scanners, surgical robots.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Optical and Instrumentation: Precision rotary tables and scanning devices.
