SF180AR0
3/4" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF180AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
7.67 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
18"
Bore diameter tolerance
-0.0016"– 0"
Outside diameter
19.5"
Outside diameter tolerance
-0.0016"– 0"
Width
0.75"
Width tolerance
+.000 –.010"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
18.555"
Outer Ring Dimensions
Outer ring large-side face inner diameter
19.096"
Outer ring small-side face inner diameter
18.945"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
8103 lbf
Radial static load rating
25410 lbf
Axial static load rating
21210 lbf
Static load moment
73360 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:
$ 2147.37
/ each
In Stock
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SF180AR0 Bearing Product Overview & Core Advantages
The SF180AR0 is a high-performance thin section angular contact ball bearing engineered for applications demanding precision and reliability. As part of the Reali-Slim Stainless Steel Bearings series, it features a single row design with a 30° contact angle, optimized to handle combined radial and axial loads simultaneously. Its compact cross-section, with a width of only 0.75 inches, makes it ideal for space-constrained assemblies while providing high rigidity and operational accuracy. Manufactured entirely from stainless steel components with a brass cage, it offers excellent corrosion resistance and is pre-lubricated for immediate use within a broad temperature range.
SF180AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF180 | Specifies the bearing series (Reali-Slim) and size: 18" bore, 19.5" outside diameter. |
| A | Indicates Angular Contact design with a 30° contact angle. |
| R0 | Denotes Radial Internal Clearance group (0.0000 – 0.0005"). |
| (Implied: Open) | The bearing is supplied as Open (unsealed), allowing for custom sealing solutions or direct lubrication access. |
SF180AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides high axial and radial stiffness. It supports substantial combined loads, with a radial dynamic load rating of 8103 lbf and a static load moment capacity of 73360 lbf.
- Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional control on the bore diameter and outside diameter, ensuring precise fit and smooth operation.
- Corrosion-Resistant Construction: All critical components, including the rings and balls, are made from stainless steel, making the bearing suitable for harsh environments and clean applications.
- Optimized Cage Design: The brass cage ensures stable ball guidance, contributing to smooth rotation and reduced wear, even under varying load conditions.
- Broad Operating Range: Pre-lubricated and capable of operating within a temperature range of -30°C to 110°C, offering versatility across different application environments.
SF180AR0 Bearing Typical Application Areas
This bearing is ideally suited for:
- Robotics and Automation: Rotary joints and precision arms where space and weight are critical.
- Aerospace & Defense Systems: Gimbal mechanisms, radar platforms, and control surfaces requiring high reliability.
- Medical Equipment: High-precision imaging devices and surgical robots demanding smooth, accurate motion.
- Semiconductor Manufacturing: Wafer handling and positioning equipment in cleanroom environments.
- Industrial Machinery: Turntables, indexing tables, and other applications requiring high moment load capacity and thin cross-sections.
