SD055XP0
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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SD055XP0 Bearing Product Overview & Core Advantages
The SD055XP0 represents a high-performance Four Point Contact Ball Bearing from the Reali-Slim Stainless Steel Bearings series. Engineered with inch system measurements, this thin section bearing delivers exceptional performance in compact spaces where standard bearings cannot fit. Its four point contact design enables it to simultaneously handle combined radial and axial loads from any direction, making it ideal for applications requiring high precision and reliability. The stainless steel construction ensures excellent corrosion resistance while maintaining dimensional stability across a wide temperature range.
SD055XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| SD055 | Bore diameter: 5.5 inches | Large bore size for substantial shaft applications |
| XP0 | Cross section designation: 0.5" width | Ultra-thin profile for space-constrained designs |
| Open | No seals or shields | Maximum speed capability and custom lubrication options |
| ABEC-1 | Precision tolerance class | Consistent performance for general precision applications |
SD055XP0 Bearing Structural Features & Performance Benefits
Four Point Contact Design: The unique raceway geometry creates four contact points between balls and raceways, enabling the bearing to handle combined radial, axial, and moment loads simultaneously. This eliminates the need for multiple bearing arrangements, simplifying system design.
Thin Section Construction: With only 0.5" width and minimal cross-section, this bearing provides maximum load capacity in minimal space. The precise dimensional tolerances (-0.0010" to 0" on bore and OD) ensure consistent performance and easy installation.
Stainless Steel Construction: Both rings and balls are manufactured from stainless steel, providing excellent corrosion resistance and suitability for harsh environments. The brass cage ensures smooth operation and reliable performance across the entire temperature range (-30°C to 110°C).
High Load Capacity: Despite its thin section, the SD055XP0 delivers impressive load ratings - 2725 lbf radial dynamic, 4100 lbf radial static, 4260 lbf axial dynamic, and 10260 lbf axial static. The moment load capacity of 6 ft-lbf makes it suitable for applications experiencing tilting moments.
SD055XP0 Bearing Typical Application Areas
- Robotics and Automation: Robotic joints, positioning systems, and rotary actuators requiring compact, high-capacity bearings
- Aerospace Systems: Flight control mechanisms, satellite positioning systems, and antenna positioning units
- Medical Equipment: CT scanners, MRI machines, and surgical robotics where precision and reliability are critical
- Industrial Machinery: Rotary tables, indexing heads, and precision positioning equipment
- Military and Defense: Turret systems, radar positioning, and guidance systems requiring corrosion-resistant components
- Semiconductor Manufacturing: Wafer handling equipment and precision positioning stages
