KB047XP0
5/16" 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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KB047XP0 Bearing Product Overview & Core Advantages
The KB047XP0 is a thin section four-point contact ball bearing engineered for applications demanding high precision and space optimization. This inch-series bearing features a single-row design with an open construction, enabling it to simultaneously support combined loads—significant radial, axial, and moment loads—within a remarkably compact cross-section. Manufactured to ABEC-1 precision tolerances, it delivers reliable performance in high-accuracy systems. Its four-point contact geometry provides exceptional rigidity and load-handling capability from a single bearing row, making it an ideal solution for weight and space-critical designs.
KB047XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KB | Indicates the Reali-Slim bearing series, known for thin cross-sections. |
| 047 | Specifies the bore diameter in inches (4.75"). |
| XP | Denotes Four-Point Contact design for handling combined radial, axial, and moment loads. |
| 0 | Indicates an Open (unsealed) construction, suitable for controlled environments or custom lubrication systems. |
KB047XP0 Bearing Structural Features & Performance Benefits
Four-Point Contact & High Rigidity: The unique raceway geometry allows the bearing to make contact with the balls at four points, enabling a single bearing to withstand combined radial, axial, and moment loads with high system rigidity. This eliminates the need for complex multi-bearing arrangements.
Superior Load Capacity: With a radial dynamic load rating of 1193 lbf and a substantial axial static load rating of 5080 lbf, the KB047XP0 is built for demanding applications. Its high moment load capacity (Dynamic: 2265 lbf, Static: 5140 lbf) ensures stability under overturning forces.
Precision & Lightweight Construction: Manufactured to ABEC-1 tolerance standards with a tight radial internal clearance, it ensures smooth, precise operation. The thin-section design and use of chrome steel for rings and balls, combined with a brass cage, result in a lightweight component (0.34 lbs) without compromising strength.
Versatile Lubrication & Operation: The open design is supplied lubricated, allowing for integration into existing lubrication systems. It operates effectively within a temperature range of -30°C to 110°C.
KB047XP0 Bearing Typical Application Areas
The KB047XP0 thin section bearing is ideally suited for compact, high-precision machinery including:
- Robotics & Automation: Robot arms, rotary joints, and gantry systems where space and weight are critical.
- Aerospace & Defense: Actuators, control mechanisms, and radar platforms.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Medical Equipment: MRI scanners, surgical robots, and diagnostic devices.
- Optical & Instrumentation Systems: Rotary tables and positioning devices requiring high accuracy and stiffness.
