KG040AR0
1" Constant Section Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
KG040AR0 Bearing Product Overview & Core Advantages
The KG040AR0 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, supporting significant axial loads in one direction alongside radial loads. Its inch-series construction (4" bore, 6" OD, 1" width) provides a compact cross-section while maintaining robust performance. Manufactured to ABEC-1 precision with a 30° contact angle, it delivers reliable operation in precision machinery and rotational systems.
KG040AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG040AR0 | Complete bearing designation in Reali-Slim series |
| Open (Construction) | No seals or shields, suitable for controlled environments |
| Angular Contact | Optimized for combined radial and axial loading |
| ABEC-1 | Precision tolerance class ensuring consistent performance |
KG040AR0 Bearing Structural Features & Performance Benefits
Thin-Section Design: The optimized cross-section (1" width) enables significant space and weight savings while maintaining structural integrity, making it ideal for compact machinery layouts.
High Load Capacity: With a radial dynamic load rating of 6281 lbf and exceptional axial static load capacity of 13630 lbf, this bearing reliably handles demanding combined load conditions.
Precision Engineering: The chrome steel rings and balls, combined with brass cage construction, ensure smooth operation and extended service life. The tight radial internal clearance (0.0000 – 0.0005") contributes to precise rotational accuracy.
Thermal Performance: Operating temperature range of -30°C to 110°C allows for reliable performance in various industrial environments.
KG040AR0 Bearing Typical Application Areas
- Robotics and automation systems requiring precise motion control
- Aerospace components where weight and space optimization are critical
- Medical equipment such as CT scanners and surgical robots
- Semiconductor manufacturing equipment demanding high precision
- Industrial rotators and positioning tables handling combined loads
- Optical and measurement instruments requiring minimal deflection
