SD140AR0
1/2" Stainless Steel 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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SD140AR0 Bearing Product Overview & Core Advantages
The SD140AR0 is a high-performance thin section angular contact ball bearing engineered for applications demanding precision and reliability. Constructed from stainless steel with a brass cage, it is designed to handle significant combined loads, including high thrust loads, thanks to its 30° contact angle. Its Reali-Slim cross-section provides a compact and lightweight solution without compromising on load capacity, making it ideal for space-constrained, high-precision machinery. The bearing comes pre-lubricated for immediate operation.
SD140AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SD | Indicates the Reali-Slim series of thin section bearings. |
| 140 | Specifies the bore diameter of 14 inches. |
| A | Denotes a 30° contact angle, optimized for handling high axial loads. |
| R0 | Specifies the radial internal clearance group (0.0000 – 0.0005"). |
SD140AR0 Bearing Structural Features & Performance Benefits
High Load Capacity & Rigidity: The single row angular contact design, combined with a 30° contact angle, enables the bearing to efficiently support substantial combined radial and axial loads. The stainless steel construction of the rings and balls provides excellent corrosion resistance and durability.
Precision & Smooth Operation: Manufactured to ABEC-1 tolerance class, this bearing ensures consistent performance and running accuracy. The brass cage contributes to stable operation and is suitable for a wide range of rotational speeds.
Space-Saving Design: As part of the Reali-Slim series, it features a thin cross-section (0.5" width) relative to its large bore diameter, offering significant weight and space savings in complex assemblies.
Operational Readiness: The bearing is pre-lubricated and features an open seal type, making it ready for installation and operation in controlled environments.
SD140AR0 Bearing Typical Application Areas
The SD140AR0 is ideally suited for a variety of demanding applications across multiple industries, including:
- Robotics and Automation: Used in robotic arm joints and precision stages.
- Aerospace & Defense: Suitable for radar platforms, gimbal systems, and flight control mechanisms.
- Medical Equipment: Found in MRI and CT scanner gantries, and surgical robots.
- Semiconductor Manufacturing: Applied in wafer handling robots and precision positioning tables.
