SF250AR0
3/4" Stainless Steel Constant Section Bearings
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Part No.
Part No.
SF250AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Reali-Slim Stainless Steel
Construction
Single Row
Weight
10.5 lbs
Tolerance class
ABEC-1
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25"
Bore diameter tolerance
-0.0018"– 0"
Outside diameter
26.5"
Outside diameter tolerance
-0.0018"– 0"
Width
0.75"
Width tolerance
+.000 –.010"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
25.555"
Outer Ring Dimensions
Outer ring large-side face inner diameter
26.085"
Outer ring small-side face inner diameter
25.945"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
9585 lbf
Radial static load rating
34700 lbf
Axial static load rating
26100 lbf
Static load moment
100200 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:
$ 2902.89
/ each
In Stock
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SF250AR0 Bearing Product Overview & Core Advantages
The SF250AR0 is a thin-section angular contact ball bearing engineered for applications requiring high precision and space optimization. Manufactured from stainless steel with a 30° contact angle, it is specifically designed to handle significant combined loads, including both radial and axial forces. Its ABEC-1 precision and compact cross-section (0.75" width) make it an ideal solution for high-reliability systems where dimensional constraints and performance are critical.
SF250AR0 Bearing Model Code Explained, Specifications & Naming Convention
The SF250AR0 model designation provides key technical specifications:
- SF: Indicates the Reali-Slim® thin-section bearing series.
- 250: Specifies the nominal bore size of 25.0 inches.
- A: Denotes the angular contact design.
- R0: Signifies an open (unsealed) construction with standard radial internal clearance.
SF250AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row angular contact design, combined with a 30° contact angle and stainless steel construction, provides excellent rigidity. It supports high radial dynamic load ratings of 9585 lbf and axial static load ratings of 26100 lbf, making it suitable for applications with significant combined loads.
- Precision Performance: Manufactured to ABEC-1 tolerance standards with a tight radial internal clearance (0.0000 – 0.0005"), this bearing ensures smooth, precise operation and minimal runout.
- Corrosion Resistance & Durability: The use of stainless steel for rings and balls, along with a brass cage, offers superior corrosion resistance and reliable performance in demanding environments within its operating temperature range of -30°C to 110°C.
SF250AR0 Bearing Typical Application Areas
This bearing is ideally suited for precision machinery and systems where space and weight are at a premium, including:
- Robotics and Automation: Joint and arm assemblies requiring high moment load capacity (100200 lbf-in static load moment).
- Aerospace & Defense: Gimbal systems, radar platforms, and control surfaces.
- Medical Equipment: High-precision imaging and surgical devices.
- Semiconductor Manufacturing: Precision stages and wafer handling equipment.
