KG090BROK
1" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KG090BROK Bearing Product Overview & Core Advantages
The KG090BROK is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. As part of the Reali-Slim Open Bearings series with inch measurements, this single-row bearing excels in handling combined radial and axial loads simultaneously. Its 30° contact angle provides superior axial load capacity while maintaining compact dimensions (9" bore × 11" OD × 1" width). Manufactured to ABEC-1 precision standards with chrome steel components and brass cage, this bearing delivers reliable performance in precision motion systems where high rigidity and accurate rotation are critical requirements.
KG090BROK Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| KG090 | Bore diameter designation (9 inches) | Standardized sizing for compatibility |
| BROK | Reali-Slim Open series, angular contact type | Space-saving design with optimized load capacity |
| Open Construction | No seals or shields | Allows for custom lubrication schemes and higher speed capability |
KG090BROK Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: With a consistent 1-inch cross-section regardless of bore size, this bearing enables compact machine designs while maintaining structural integrity. The thin-section construction reduces weight (7.22 lbs) without compromising load capacity.
Superior Load Handling: The 30° contact angle configuration provides exceptional axial load capacity (21,640 lbf static) while maintaining substantial radial load capability (9,073 lbf dynamic). This makes the bearing ideal for applications experiencing combined loading conditions.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional controls (bore/OD tolerance: -0.0012" to 0"), this bearing ensures precise rotational accuracy. The minimal radial internal clearance (0.0000" - 0.0005") contributes to reduced vibration and smooth operation.
Enhanced Durability: Constructed from chrome steel rings and balls with a brass cage, the bearing offers excellent wear resistance and dimensional stability across the operating temperature range (-30°C to 110°C).
KG090BROK Bearing Typical Application Areas
- Robotics and Automation: Robotic arms, rotary joints, and precision positioning systems requiring compact high-precision bearings
- Aerospace Systems: Aircraft control mechanisms, satellite positioning systems, and aerospace instrumentation
- Medical Equipment: CT scanners, MRI machines, and surgical robotics where thin-section bearings enable compact designs
- Industrial Machinery: Rotary tables, indexing heads, and precision spindles in manufacturing equipment
- Defense Systems: Radar antennas, targeting systems, and military optical equipment requiring high rigidity and precision
