SFR1
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR1
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.19 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.05556"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.1875"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0781"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.234"
Flange thickness
0.023"
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
6
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
40 lbf
Radial static load rating
11 lbf
Limiting speed
81 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 18.23
/ each
In Stock
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SFR1 Bearing Product Overview & Core Advantages
The SFR1 is a precision miniature ball bearing designed for applications requiring compact dimensions and reliable performance. As a single row radial ball bearing with an open design, it excels in handling pure radial loads at moderate speeds. Manufactured entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for demanding environments. Its compact bearing dimensions (0.05556" bore x 0.1875" OD) and lightweight construction (0.19 g) are ideal for space-constrained assemblies.
SFR1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR1 | Standard series designation for a specific miniature bearing size. |
| Open | No integral seals or shields, allowing for higher potential speeds but requiring external environmental protection. |
| ABEC1 | Specifies the tolerance class, indicating standard precision levels for runout and dimensions. |
| MC3 | Defines the radial internal clearance group (0.00008" to 0.0005"), suitable for general operating conditions. |
SFR1 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: The single-row construction with a 0.0781" width and a total weight of 0.19 g enables integration into the most compact mechanisms and reduces rotational inertia.
- Corrosion Resistance: All components, including rings, balls, and the stainless steel cage, are made from stainless steel, ensuring long-term performance in humid or corrosive environments.
- High-Speed Capability: The open design and optimized stainless steel cage contribute to a high limiting speed of 81,000 rpm, making it suitable for high-speed spindles and miniature motors.
- Standard Internal Clearance (MC3): Provides optimal fit and performance for a wide range of general applications, balancing thermal expansion and operational precision.
SFR1 Bearing Typical Application Areas
- Small Precision Motors and Spindles
- Medical and Dental Handpieces
- Optical Encoders and Scanners
- Instrumentation and Control Devices
- RC Models and Drones
- Office Automation Equipment
