SB180AR0
5/16" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SB180AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
1.26 lbs
Tolerance class
ABEC-1
ISO radial rating
3292 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
18"
Bore diameter tolerance
-0.0016"– 0"
Outside diameter
18.625"
Outside diameter tolerance
-0.0018"– 0"
Width
0.3125"
Width tolerance
+.000 –.010"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
18.231"
Outer Ring Dimensions
Outer ring large-side face inner diameter
18.425"
Outer ring small-side face inner diameter
18.393"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
2038 lbf
Radial static load rating
8660 lbf
Axial static load rating
5510 lbf
Static load moment
24990 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:
$ 2806.78
/ each
In Stock
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SB180AR0 Bearing Product Overview & Core Advantages
The SB180AR0 is a high-precision thin section angular contact ball bearing designed for applications demanding exceptional rigidity and precise motion control. Manufactured from stainless steel with a 30° contact angle, this single-row bearing is engineered to support combined loads, handling significant radial and axial forces simultaneously. Its Reali-Slim cross-section provides a compact, lightweight solution without sacrificing performance, making it ideal for space-constrained, high-reliability applications. The bearing comes pre-lubricated and is rated for a wide operating temperature range.
SB180AR0 Bearing Model Code Explained, Specifications & Naming Convention
The model number SB180AR0 can be broken down as follows:
- SB: Indicates a Stainless Steel thin section bearing.
- 180: Specifies the bore diameter in inches (18.0").
- A: Denotes the Angular Contact design.
- R0: Specifies the Radial Internal Clearance group (0.0000 – 0.0005").
SB180AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 30° contact angle and stainless steel construction provides high rigidity, enabling the bearing to handle substantial combined radial and axial loads (Radial Static: 8660 lbf, Axial Static: 5510 lbf).
- Precision Performance: Built to ABEC-1 tolerance standards, it ensures smooth, precise operation with minimal runout, which is critical for accurate positioning systems.
- Durability & Corrosion Resistance: The use of stainless steel for rings and balls, combined with a brass cage, offers excellent corrosion resistance and longevity, even in challenging environments.
- Optimized for Compact Designs: The Reali-Slim profile (Width: 0.3125") allows for significant weight and space savings (Weight: 1.26 lbs) in advanced machinery.
SB180AR0 Bearing Typical Application Areas
This bearing is ideally suited for:
- Robotics: Arm joints and precision actuators.
- Aerospace & Defense: Guidance systems, gimbals, and control surfaces.
- Medical Equipment: Surgical robots and MRI scanner components.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Optical Instrumentation: Rotary stages and mirror mounts.
