KB020AR0
5/16" Constant Section Bearings
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Part No.
Part No.
KB020AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Open
Construction
Single Row
Weight
0.15 lbs
Tolerance class
ABEC-1
ISO radial rating
1520 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
2"
Bore diameter tolerance
-0.0006" – 0"
Outside diameter
2.625"
Outside diameter tolerance
-0.0006" – 0"
Width
0.3125"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
2.231"
Outer Ring Dimensions
Outer ring large-side face inner diameter
2.464"
Outer ring small-side face inner diameter
2.393"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
601 lbf
Radial static load rating
1090 lbf
Axial static load rating
1380 lbf
Static load moment
3150 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:
$ 53.3
/ each
In Stock
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KB020AR0 Bearing Product Overview & Core Advantages
The KB020AR0 is a high-precision thin section angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy within compact spaces. Featuring a single row design with a 30° contact angle, it is engineered to support significant combined loads, handling both radial and axial forces simultaneously. Manufactured to ABEC-1 tolerance standards, this bearing offers reliable performance and is pre-lubricated for immediate use, making it an ideal solution for high-reliability, precision motion systems.
KB020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| Open | Indicates the bearing has no seals or shields, allowing for direct access for lubrication and high-speed operation. |
| Reali-Slim | Denotes a thin-section bearing series, characterized by a cross-section that is significantly smaller than its bore diameter, enabling lightweight and compact designs. |
KB020AR0 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 support substantial combined radial and axial loads. The axial static load rating of 1380 lbf highlights its capability to handle thrust loads effectively.
- Precision & Accuracy: Manufactured to ABEC-1 precision class with tight dimensional tolerances on the bore, outside diameter, and width, ensuring predictable performance and smooth operation in precision assemblies.
- Optimized for Compact Designs: As a thin section bearing, it features a minimal cross-section (0.3125" width) relative to its bore (2"), saving critical space and reducing overall system weight without sacrificing performance.
- Durable Construction: Components made from Chrome Steel and a Brass cage offer excellent durability, wear resistance, and stable operation across the specified temperature range.
KB020AR0 Bearing Typical Application Areas
- Robotics and Automation Arms
- Precision Medical and Laboratory Equipment
- Aerospace Actuation Systems
- Semiconductor Manufacturing Equipment
- High-Precision Rotary Tables and Indexers
