SA055XP0
1/4" 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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SA055XP0 Bearing Product Overview & Core Advantages
The SA055XP0 is a Four Point Contact Ball Bearing from the Reali-Slim Stainless Steel Bearings series, designed for applications demanding extreme thin sections and high precision. This single row bearing is engineered to simultaneously support combined loads, including radial loads and bidirectional axial loads, within a remarkably compact cross-section. Manufactured entirely from stainless steel with a brass cage, it offers excellent corrosion resistance and reliable performance in a wide temperature range from -30°C to 110°C. Its ABEC-1 precision and optimized internal geometry ensure smooth operation and high positional accuracy, making it an ideal solution for space-constrained, high-reliability applications.
SA055XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SA | Stainless Steel, Reali-Slim Series | Indicates the bearing is part of the thin-section, corrosion-resistant stainless steel family. |
| 055 | Bore Diameter Code (5.5") | Specifies the nominal bore diameter in inches. |
| X | Extra Light Cross Section | Denotes the specific, ultra-thin cross-sectional series. |
| P0 | Open (No Seal/Shield), Standard Precision | Signifies an open bearing (no contact seals) with standard ABEC-1 tolerance, allowing for higher speeds and custom lubrication. |
SA055XP0 Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The unique raceway geometry allows a single row bearing to handle significant combined radial and axial loads from both directions, simplifying assembly and saving space compared to traditional duplex pairs.
- Ultra-Thin Section: With a cross-section of only 0.25", this bearing maximizes the available space inside a housing, enabling compact and lightweight machinery design without sacrificing performance.
- High Load Capacity & Rigidity: The optimized contact angle and stainless steel construction provide high static and dynamic load ratings (e.g., 1750 lbf radial static, 4360 lbf axial static), ensuring stability and resistance to deformation under load.
- Corrosion Resistance & Clean Operation: The use of stainless steel for all bearing components and the brass cage makes it suitable for harsh environments, cleanrooms, and applications where lubrication contamination is a concern.
- Precision Performance: Manufactured to ABEC-1 tolerance classes with a controlled radial internal clearance, it delivers smooth, low-noise, and low-vibration operation essential for precision applications.
SA055XP0 Bearing Typical Application Areas
The SA055XP0 is ideally suited for applications requiring a large diameter, thin-section bearing with high load capacity. Common uses include:
- Robotics: Joints, rotary actuators, and end-of-arm tooling.
- Aerospace & Defense: Gimbals, radar platforms, and guidance systems.
- Medical Equipment: CT scanners, MRI machines, and surgical robots.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Optical and Instrumentation Systems: Rotary tables and positioning devices.
