SB042AR0
5/16" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SB042AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
0.31 lbs
Tolerance class
ABEC-1
ISO radial rating
1967 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4.25"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
4.875"
Outside diameter tolerance
-0.0008"– 0"
Width
0.3125"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.481"
Outer Ring Dimensions
Outer ring large-side face inner diameter
4.71"
Outer ring small-side face inner diameter
4.643"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
891 lbf
Radial static load rating
2150 lbf
Axial static load rating
2170 lbf
Static load moment
6200 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:
$ 241.48
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SB042AR0 Bearing Product Overview & Core Advantages
The SB042AR0 is a high-performance thin section angular contact ball bearing engineered for precision applications requiring exceptional rigidity and accuracy. Manufactured with stainless steel rings and balls and a brass cage, this bearing is designed to handle combined radial and axial loads simultaneously. Its ABEC-1 precision class and consistent 30° contact angle ensure reliable operation in demanding, compact assemblies where space and weight are critical constraints. The open design allows for custom lubrication strategies, making it a versatile choice for high-reliability systems.
SB042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SB | Indicates a Stainless Steel thin section bearing from the Reali-Slim series. |
| 04 | Specifies the cross-section size/profile of the bearing. |
| 2 | Denotes the contact angle (30° in this specification). |
| AR | Signifies Angular Contact construction in a Single Row configuration. |
| 0 | Indicates an Open (unsealed) bearing, allowing for application-specific lubrication. |
SB042AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides excellent resistance to combined loads, supporting a radial dynamic load of 891 lbf and a static moment load of 6200 lbf.
- Precision Engineering: Built to ABEC-1 tolerance class with tight dimensional control on bore, outside diameter, and width for predictable performance in high-accuracy applications.
- Corrosion Resistance & Durability: The use of stainless steel for all bearing components ensures superior corrosion resistance and reliable operation within a temperature range of -30°C to 110°C.
- Optimized Cage Design: The brass cage provides stable ball guidance, contributing to smooth operation and extended service life.
- Lightweight & Compact: As part of the Reali-Slim series, this bearing offers a large bore relative to its cross-section, enabling significant weight (0.31 lbs) and space savings in complex machinery.
SB042AR0 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring high precision, corrosion resistance, and compact design:
- Robotics and automation arms (joint bearings)
- Aerospace control mechanisms and actuation systems
- Medical Equipment such as MRI scanners and surgical robots
- Semiconductor Manufacturing equipment (wafer handling, precision stages)
- Optical Positioning Systems and rotary tables
