SA040AR0
1/4" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SA040AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
0.19 lbs
Tolerance class
ABEC-1
ISO radial rating
1353 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
4.5"
Outside diameter tolerance
-0.0006"– 0"
Width
0.25"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.186"
Outer Ring Dimensions
Outer ring large-side face inner diameter
4.367"
Outer ring small-side face inner diameter
4.314"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
595 lbf
Radial static load rating
1490 lbf
Axial static load rating
1470 lbf
Static load moment
4300 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:
$ 133.47
/ each
In Stock
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SA040AR0 Bearing Product Overview & Core Advantages
The SA040AR0 is a thin-section angular contact ball bearing engineered for applications demanding high precision and space optimization. As part of the Reali-Slim® Stainless Steel series, it features a single-row design with a 30° contact angle, enabling it to support significant combined loads—both radial and axial. Its stainless steel construction offers excellent corrosion resistance, while its compact cross-section (0.25" width) makes it ideal for lightweight, high-rigidity systems where minimizing envelope size is critical.
SA040AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SA | Stainless Steel, Angular Contact design |
| 040 | Bore Diameter: 4 inches |
| A | 30° Contact Angle (standard for this series) |
| R0 | Radial Internal Clearance: Standard (0.0000 – 0.0005") |
SA040AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row angular contact design with a 30° contact angle provides optimal support for combined radial and axial loads, with a static load moment rating of 4300 lbf.
- Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional controls on bearing dimensions (bore, OD, width) for consistent performance in precision assemblies.
- Corrosion-Resistant Construction: Both rings and balls are made from stainless steel, with a brass cage, ensuring reliable operation in corrosive or clean environments.
- Space-Saving Design: The ultra-thin 0.25" cross-section minimizes weight (0.19 lbs) and envelope size without sacrificing load ratings or structural integrity.
SA040AR0 Bearing Typical Application Areas
- Robotics & Automation: Joint and arm assemblies requiring compact, high-precision bearings.
- Aerospace & Defense: Guidance systems, actuators, and control surfaces where weight savings and reliability are paramount.
- Medical Equipment: Imaging devices, surgical robots, and diagnostic instruments demanding corrosion resistance and precision.
- Semiconductor Manufacturing: Wafer handling and positioning equipment in cleanroom environments.
- Optical & Instrumentation Systems: Rotary stages and positioning devices requiring minimal deflection and high accuracy.
