KF075AR0
3/4" 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
Product Overview and Core Advantages
The KF075AR0 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, this single-row bearing excels in handling combined loads, particularly thrust loads in one direction, thanks to its specified 30° contact angle. Its inch-dimension design (7.5" bore, 9" OD) offers a compact cross-section while maintaining high load capacity, making it ideal for precision machinery where weight and space are critical constraints. The bearing comes pre-lubricated for immediate operation and is manufactured to ABEC-1 precision tolerances, ensuring reliable performance in demanding applications.
KF075AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KF075 | Bearing series designation for thin-section angular contact bearings with 7.5" bore diameter |
| A | Angular contact design with 30° contact angle |
| R0 | Open bearing construction without seals or shields |
Structural Features and Performance Benefits
Thin-Section Design: The bearing's slim profile (0.75" width) provides significant space and weight savings while maintaining structural integrity, with a weight of only 3.39 lbs.
High Load Capacity: Engineered to handle substantial combined radial and axial loads, featuring a radial dynamic load rating of 5052 lbf and exceptional axial static load capacity of 12130 lbf.
Precision Construction: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore and OD tolerance: -0.0012" to 0"), ensuring consistent performance and easy installation.
Premium Materials: Utilizes chrome steel for rings and balls with a brass cage, providing excellent durability and stable operation across the temperature range of -30°C to 110°C.
Optimized Internal Geometry: The 30° contact angle and precise shoulder diameters (inner: 8.055", outer ring faces: 8.445"/8.61") ensure proper load distribution and alignment capability.
KF075AR0 Bearing Typical Application Areas
Aerospace Systems: Actuators, control mechanisms, and rotor systems where weight reduction and precision are critical
Robotics and Automation: Robotic arms, rotary joints, and precision positioning systems requiring high moment capacity (static load moment: 31740 lbf)
Medical Equipment: CT scanners, MRI systems, and surgical robots demanding smooth operation and high reliability
Semiconductor Manufacturing: Wafer handling equipment, precision stages, and cleanroom automation systems
Defense Systems: Radar antennas, turret systems, and guidance mechanisms requiring high precision and reliability
