KF070AR0
3/4" 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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KF070AR0 Bearing Product Overview & Core Advantages
The KF070AR0 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, it delivers exceptional performance in compact envelopes. Its single-row construction with a 30° contact angle is engineered to handle significant combined loads—simultaneously supporting radial forces and substantial axial thrust in one direction. Manufactured to ABEC-1 precision standards, this bearing ensures reliable operation in high-accuracy systems while its open design allows for customized sealing and lubrication solutions.
KF070AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Significance |
|---|---|---|
| KF070 | Series designation for Reali-Slim open bearings | Indicates thin-section construction for space-constrained applications |
| A | Angular contact design | Optimized for combined radial and axial loading |
| R0 | Radial internal clearance specification | Precision clearance range (0.0000-0.0005") for optimal performance |
KF070AR0 Bearing Structural Features & Performance Benefits
Thin-Section Engineering: With a cross-section of just 0.75" width between 7" bore and 8.5" OD, this bearing maximizes space utilization while maintaining structural integrity. The brass cage provides excellent guidance and stability at moderate speeds.
High Load Capacity: Despite its slim profile, the bearing delivers impressive load ratings—4,932 lbf dynamic and 10,510 lbf static radial capacity, plus exceptional 11,770 lbf axial static load handling. The 30° contact angle optimally distributes stress for extended service life.
Precision Performance: Manufactured to ABEC-1 tolerance class with tight dimensional controls (bore tolerance: -0.0010"–0"), ensuring consistent performance in precision applications. The minimal radial internal clearance (0.0000-0.0005") provides precise rotational characteristics.
Material Excellence: Constructed from chrome steel for both rings and balls, delivering high hardness, wear resistance, and dimensional stability across the operating temperature range (-30°C to 110°C).
KF070AR0 Bearing Typical Application Areas
- Robotics and Automation: Rotary joints, robotic arms, and precision positioning systems
- Aerospace Systems: Guidance mechanisms, control surface actuators, and instrument platforms
- Medical Equipment: Imaging systems, surgical robots, and diagnostic device rotors
- Semiconductor Manufacturing: Wafer handling equipment, precision stages, and inspection machinery
- Optical and Instrumentation: Telescope mounts, measuring devices, and precision rotary tables
