SA120XP0
1/4" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SA120XP0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
0.56 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
12"
Bore diameter tolerance
-0.0014" – 0"
Outside diameter
12.5"
Outside diameter tolerance
-0.0014" – 0"
Width
0.25"
Width tolerance
+.000 –.005"
Inner Ring Dimensions
Shoulder diameter inner ring
12.186"
Outer Ring Dimensions
Outer ring small-side face inner diameter
12.314"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
1433 lbf
Radial static load rating
3720 lbf
Axial dynamic load rating
2450 lbf
Axial static load rating
9300 lbf
Dynamic load moment
6587 lbf
Static load moment
22770 lbf
Rated load moment
6 ft-lbf
Lubrication
Lubricated
Radial internal clearance
0.0000 – 0.0005"
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Brass
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 548.93
/ each
In Stock
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SA120XP0 Bearing Product Overview & Core Advantages
The Reali-Slim Stainless Steel Bearing represents a specialized thin section bearing solution engineered for applications demanding compact cross-sections and high precision. This single row, four-point contact ball bearing is uniquely designed to support significant combined loads—simultaneously handling radial, axial, and moment loads—within an extremely slim profile. Manufactured entirely from stainless steel with a brass cage, it offers excellent corrosion resistance and reliable performance. Its ABEC-1 precision class and optimized internal geometry ensure smooth operation and high positional accuracy, making it ideal for space-constrained, high-reliability systems.
SA120XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Feature | Designation/Value | Technical Significance |
|---|---|---|
| System of Measurement | Inch | Specified in imperial units for compatibility with North American machinery standards. |
| Bearing Type & Series | Reali-Slim Stainless Steel | Denotes a thin-section bearing family with a compact cross-section and stainless steel construction. |
| Construction | Single Row, Four Point Contact | The four-point contact design allows a single bearing to support radial, axial, and moment loads efficiently. |
| Seal Type | Open | No integral seals, allowing for custom sealing solutions and higher speed potential in clean environments. |
| Tolerance Class | ABEC-1 | A standard precision grade ensuring consistent running accuracy and reduced vibration. |
| Lubrication | Lubricated | Comes pre-lubricated to ensure immediate operation and reduce initial setup friction. |
SA120XP0 Bearing Structural Features & Performance Benefits
- Ultra-Thin Cross-Section & Space Savings: With a cross-section of only 0.25", this bearing delivers maximum performance in minimal space, enabling lighter and more compact machine designs.
- Superior Load Capacity from Four-Point Contact: The raceway geometry creates four points of contact between the balls and raceways, allowing the single bearing to withstand substantial combined radial, axial, and moment loads. This eliminates the need for complex multi-bearing arrangements.
- High Rigidity and Precision: The stainless steel rings and ABEC-1 tolerances contribute to high bearing rigidity and precise rotational accuracy, which is critical for applications like robotics and precision instrumentation.
- Corrosion Resistance and Durability: The use of stainless steel for all bearing components provides excellent resistance to corrosion, making it suitable for harsh environments, including those requiring washdown or exposure to certain chemicals.
- Optimized Cage Design: The brass cage ensures stable ball guidance and reliable performance at moderate speeds, contributing to smooth operation and long service life.
SA120XP0 Bearing Typical Application Areas
- Robotics: Rotary joints, robot arms, and grippers where compact size, high moment load capacity, and precision are paramount.
- Aerospace & Defense: Gimbals, control mechanisms, and sensor platforms that require lightweight, reliable components with high load density.
- Medical Equipment: MRI scanners, surgical robots, and diagnostic devices benefiting from corrosion resistance, precision, and compact design.
- Semiconductor Manufacturing: Wafer handling robots and precision stages that demand ultra-clean operation and high accuracy.
- Optics and Instrumentation: Rotary tables, scanning mirrors, and positioning systems requiring minimal friction and high rigidity.
