KB140AR0
5/16" 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
KB140AR0 Bearing Product Overview & Core Advantages
The KB140AR0 is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. Featuring a single-row construction with a 30° contact angle, this bearing excels at handling combined loads—simultaneously supporting substantial radial loads and high thrust loads in one direction. Its Reali-Slim open design provides maximum cross-section efficiency, making it ideal for compact assemblies where weight and space are critical constraints. Manufactured to ABEC-1 precision standards with chrome steel components and brass cage, it delivers reliable performance in demanding industrial environments.
KB140AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| KB140 | Bore Size: 14" | Indicates large bore diameter for shaft mounting |
| A | Angular Contact Design | Optimized for combined radial and axial loading |
| R0 | Reali-Slim Open Series | Ultra-thin cross-section for space-constrained applications |
KB140AR0 Bearing Structural Features & Performance Benefits
Thin-Section Design: With a minimal cross-section (0.3125" width) relative to bore diameter, this bearing enables compact machinery design without sacrificing load capacity.
Angular Contact Geometry: The 30° contact angle provides superior thrust load capacity while maintaining excellent radial load performance, achieving optimal load distribution.
Precision Manufacturing: ABEC-1 tolerance class ensures consistent running accuracy, while the brass cage maintains stable operation at moderate speeds.
Material Excellence: Chrome steel rings and balls combined with brass cage deliver high durability and corrosion resistance within the operating temperature range of -30°C to 110°C.
Load Capacity: With dynamic radial load rating of 1767 lbf and static moment capacity of 19500 lbf, this bearing offers reliable performance in demanding applications.
KB140AR0 Bearing Typical Application Areas
- Robotics and Automation: Joint bearings in robotic arms and precision positioning systems
- Aerospace Systems: Actuator mechanisms, control surface assemblies, and instrumentation
- Medical Equipment: Imaging systems, surgical robots, and diagnostic machinery
- Semiconductor Manufacturing: Wafer handling equipment and precision positioning stages
- Optical Systems: Telescope mounts, mirror positioning mechanisms, and laser equipment
- Industrial Machinery: Where space constraints require thin-section bearings with high load capacity
