SFR166
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR166
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.9 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.422"
Flange thickness
0.023"
Ball & Washer Dimensions
Ball diameter
0.06252"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
122 lbf
Radial static load rating
44 lbf
Limiting speed
45 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
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:
$ 1.59
/ each
In Stock
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SFR166 Bearing Product Overview & Core Advantages
The SFR166 is a single row deep groove ball bearing manufactured to inch dimensions, designed for high-performance applications requiring precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is engineered to primarily support radial loads and is characterized by its compact design, making it ideal for space-constrained assemblies. Its ABEC1 precision class ensures consistent performance, while its open design allows for versatile lubrication options to suit specific operational needs.
SFR166 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR | Manufacturer's series prefix for a specific range of small, precision inch bearings. |
| 166 | The specific size designation within the SFR series. |
| Open (No Seal/Shield suffix) | The bearing is supplied without integral seals or shields, allowing for high-speed operation and custom lubrication. |
SFR166 Bearing Structural Features & Performance Benefits
- High Precision & Stability: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), ensuring smooth and precise operation with minimal runout.
- Corrosion Resistance: The use of stainless steel for all components (rings, balls, and cage) provides superior protection in harsh or wash-down environments, with a wide temperature range from -86 to 230 °F.
- Optimized Load Capacity: The deep groove raceway and complement of 8 precision balls enable efficient handling of the 122 lbf dynamic radial load rating.
- Compact & Lightweight Design: With a bore diameter of 0.1875" and a width of just 0.125", it offers a high load capacity in a minimal envelope, weighing only 0.9 grams.
SFR166 Bearing Typical Application Areas
This bearing is suited for a wide array of precision instruments and compact mechanisms, including:
- Small precision electric motors and gearboxes
- Medical and dental handpieces
- Optical encoders and instrumentation
- Robotic joints and small automation assemblies
- Office machinery and computer peripherals
