KA070AR0
1/4" 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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KA070AR0 Bearing Product Overview & Core Advantages
The KA070AR0 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 measurement system, this single-row bearing excels in handling combined loads through its specific 30° contact angle. Its compact design (0.25" width) between 7" bore and 7.5" outside diameter provides exceptional stiffness-to-weight ratio, making it ideal for precision machinery where dimensional constraints and load capacity are critical factors.
KA070AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KA070 | Basic bearing designation with 7" bore diameter |
| A | Angular contact design with 30° contact angle |
| R0 | Open construction without seals |
KA070AR0 Bearing Structural Features & Performance Benefits
Thin-Section Design: With only 0.25" width and minimal cross-section, this bearing enables compact machine design while maintaining substantial load capacity. The single-row construction with brass cage ensures smooth operation and precise guidance.
Enhanced Load Capacity: The 30° contact angle provides superior combined load handling, with radial dynamic load rating of 823 lbf and axial static load capacity of 2100 lbf. This makes it suitable for applications experiencing both radial and thrust loads simultaneously.
Precision Performance: Manufactured to ABEC-1 tolerance class with tight dimensional controls (bore tolerance: -0.0010"–0"), the bearing delivers consistent high-precision operation. The optimized radial internal clearance (0.0000–0.0005") ensures minimal vibration and precise positioning.
Material Excellence: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and durability. The brass cage provides superior strength and corrosion resistance in various operating conditions.
KA070AR0 Bearing Typical Application Areas
- Robotics and Automation: Joint bearings in robotic arms and precision positioning systems
- Aerospace Systems: Guidance mechanisms, actuator systems, and control surfaces
- Medical Equipment: Imaging systems, surgical robots, and diagnostic machinery
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical Instruments: Rotary tables, positioning devices, and measurement equipment
- Industrial Machinery: Where space constraints demand thin-section bearings with high load capacity
