KG075AR3
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
KG075AR3 Bearing Product Overview & Core Advantages
The KG075AR3 is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. This single-row bearing features a 30° contact angle, enabling it to effectively handle combined loads—significant radial loads alongside substantial axial loads in one direction. Manufactured to ABEC 3F precision standards with inch dimensions (7.5" bore), it delivers exceptional running accuracy and high rigidity in compact assemblies. Its open construction allows for custom lubrication schemes, making it ideal for precision machinery where dimensional stability and reliable performance under complex loading conditions are critical.
KG075AR3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG075 | Bearing series designation for thin-section angular contact bearings with 7.5" bore diameter |
| A | 30° contact angle design for optimal axial load capacity |
| R | Reali-Slim® open bearing construction |
| 3 | Cross-section series designation (1" width) |
KG075AR3 Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The single-row angular contact design with 30° contact angle and ABEC 3F precision tolerance ensures exceptional stiffness and running accuracy, maintaining precise shaft positioning under heavy combined loads.
Superior Load Capacity: Engineered with chrome steel rings and balls plus a brass cage, this bearing delivers impressive load ratings—8,303 lbf dynamic and 16,110 lbf static radial load capacity, plus 19,420 lbf static axial load capacity to handle demanding applications.
Space-Optimized Design: As a thin-section bearing with only 1" width and minimal cross-section, it provides maximum load capacity within minimal space, enabling compact machine designs without compromising performance.
Precision Engineering: Tight dimensional tolerances (-0.0012" to 0" on bore and OD) and controlled radial internal clearance (0.0000-0.0005") ensure consistent performance and easy installation in precision assemblies.
KG075AR3 Bearing Typical Application Areas
The KG075AR3 excels in applications requiring high precision, compact design, and reliable performance under complex loading conditions:
- Robotics and automation systems - robotic arms and precision positioning mechanisms
- Aerospace components - control mechanisms and actuation systems
- Medical equipment - imaging systems and precision medical devices
- Semiconductor manufacturing equipment - wafer handling and precision stages
- Industrial machinery - precision spindles and rotary tables
- Optical and measurement instruments - requiring high accuracy and minimal deflection
