KD040XPO
1/2" 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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KD040XPO Bearing Product Overview & Core Advantages
The KD040XPO is a high-performance thin section bearing engineered for applications demanding space optimization without compromising load capacity. As a Four Point Contact ball bearing, it uniquely accommodates combined radial loads, axial loads in both directions, and moment loads simultaneously. Its single row, open construction and ABEC-1 precision class make it an ideal solution for compact, high-reliability systems requiring smooth operation and precise motion control.
KD040XPO Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KD040 | Bore diameter code for 4" |
| X | Cross section series designation |
| P | Four Point Contact design |
| O | Open (unsealed) construction |
KD040XPO Bearing Structural Features & Performance Benefits
Four Point Contact Design: Enables the bearing to handle combined loads efficiently, supporting radial forces, bidirectional axial thrust, and moment loads in a single compact unit.
Thin Section Construction: With a consistent 0.5" cross-section, this bearing maximizes space utilization while maintaining structural integrity, ideal for weight-sensitive and compact machinery.
Premium Material Composition: Chrome Steel rings and balls provide excellent wear resistance and durability, while the Brass cage ensures stable ball guidance and smooth operation at various speeds.
High Load Capacity: Delivers substantial dynamic load ratings (2311 lbf radial, 3520 lbf axial) and static load ratings (3080 lbf radial, 7700 lbf axial) despite its slim profile.
Precision Performance: Manufactured to ABEC-1 tolerance standards with controlled radial internal clearance (0.0000 – 0.0005") for consistent, reliable operation.
KD040XPO Bearing Typical Application Areas
The KD040XPO's unique combination of thin section design and four-point contact capability makes it particularly suitable for:
- Robotics and Automation: Rotary joints, manipulator arms, and precision positioning systems
- Aerospace Systems: Actuators, control mechanisms, and satellite components
- Medical Equipment: Imaging systems, surgical robots, and diagnostic instruments
- Industrial Machinery: Rotary tables, indexing heads, and precision gearboxes
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
