SFRW144zz
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW144zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.48 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1094"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1406"
Shoulder diameter inner ring
0.161"
Outer Ring Dimensions
Flange outer diameter
0.296"
Flange thickness
0.031"
Ball & Washer Dimensions
Ball diameter
0.0394"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
49 lbf
Radial static load rating
15 lbf
Limiting speed
60.3 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
Shield material
300 Series Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 4.29
/ each
In Stock
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SFRW144zz Bearing Product Overview & Core Advantages
The SFRW144zz is a single row ball bearing designed for high-performance applications requiring compact dimensions and reliable operation. This inch series bearing features a shielded design for contaminant protection and is constructed entirely from stainless steel, offering excellent corrosion resistance. Its primary strength lies in handling radial loads efficiently within a compact envelope, making it ideal for applications where space is at a premium and operational reliability is critical.
SFRW144zz Bearing Model Code Explained, Specifications & Naming Convention
The model number SFRW144zz provides key technical specifications:
- SFRW: Indicates a specific manufacturer series for flanged, single row bearings.
- 144: Specifies the bearing size series and bore diameter (0.125").
- zz: Denotes that the bearing is equipped with shields on both sides (non-contact type) to protect the internal components from contaminants while minimizing friction.
SFRW144zz Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integral flange (OD: 0.296") facilitates secure and simplified mounting, enhancing positional accuracy and reducing assembly complexity.
- High-Grade Stainless Steel Construction: All components, including rings, balls, cage, and shields, are made from stainless steel, ensuring superior corrosion resistance and suitability for harsh environments within a temperature range of -86 to 230 °F.
- Optimized Internal Geometry: With 7 precision balls and an ABEC1 tolerance class, the bearing provides smooth, low-noise, and low-vibration operation.
- Shielded for Protection: The non-contact ZZ shields help retain lubricant and exclude larger contaminants, contributing to a longer service life. Note that lubrication is required by the user for optimal performance.
- Performance Ratings: A dynamic load rating of 49 lbf and a limiting speed of 60,300 rpm make it suitable for demanding, high-speed applications.
SFRW144zz Bearing Typical Application Areas
This bearing is commonly specified in:
- Small Precision Motors and Stepper Motors
- Medical and Dental Hand Tools
- Optical Encoders and Precision Instrumentation
- Office Automation Equipment (e.g., printers, scanners)
- Radio Control Models and Small Gearboxes
