SD042AR0
1/2" Stainless Steel Constant Section Bearings
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Part No.
Part No.
SD042AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
0.84 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4.25"
Bore diameter tolerance
-0.0008" – 0"
Outside diameter
5.25"
Outside diameter tolerance
-0.0008" – 0"
Width
0.5"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.62"
Outer Ring Dimensions
Outer ring large-side face inner diameter
4.991"
Outer ring small-side face inner diameter
4.88"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
1876 lbf
Radial static load rating
3750 lbf
Axial static load rating
4420 lbf
Static load moment
10830 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:
$ 226.49
/ each
In Stock
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SD042AR0 Bearing Product Overview & Core Advantages
The SD042AR0 is a high-performance thin section stainless steel bearing engineered for applications demanding precision and corrosion resistance. As a single row angular contact ball bearing, it is specifically designed to handle significant combined loads, efficiently supporting both radial and axial forces in one direction. Its stainless steel construction ensures excellent durability in harsh environments, while the compact cross-section saves critical space and weight in sophisticated machinery, making it ideal for high-precision applications requiring reliable performance.
SD042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SD042 | Indicates the bearing series and size. "042" corresponds to a 4.25" bore diameter and a 5.25" outside diameter. |
| A | Signifies a 30° contact angle, optimized for handling high axial loads. |
| R0 | Specifies the radial internal clearance group (0.0000 – 0.0005"). |
SD042AR0 Bearing Structural Features & Performance Benefits
- Superior Load Capacity: The 30° contact angle and robust single row design enable the bearing to support high radial dynamic load ratings of 1876 lbf and substantial axial static load ratings of 4420 lbf, making it suitable for demanding combined load conditions.
- Precision & Rigidity: Manufactured to ABEC-1 tolerance standards with tight dimensional control on bore, outside diameter, and width, ensuring smooth operation and precise shaft positioning for enhanced system rigidity.
- Corrosion Resistance & Longevity: Constructed entirely from stainless steel (rings and balls) with a brass cage, this bearing offers excellent resistance to corrosion and is pre-lubricated for immediate use, providing reliable service in a wide temperature range from -30°C to 110°C.
- Space-Saving Design: As part of the Reali-Slim series, its thin cross-section (0.5" width) allows for compact and lightweight assembly designs without sacrificing performance.
SD042AR0 Bearing Typical Application Areas
This bearing is ideally suited for:
- Aerospace & Defense: Guidance systems, rotor assemblies, and actuation mechanisms.
- Semiconductor Manufacturing: Precision stages, wafer handling robots, and other cleanroom equipment.
- Medical Equipment: Surgical robots, imaging devices (CT/MRI scanners), and dental handpieces.
- Robotics: Joints and actuators in industrial and collaborative robots requiring high moment load capacity.
- High-Precision Industrial Machinery: Rotary tables, indexing heads, and optical positioning systems.
