FRW144zz
FRW Series Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FRW144zz
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
54 lbf
Radial static load rating
17 lbf
Limiting speed
67 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome 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:
$ 3.58
/ each
In Stock
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FRW144zz Bearing Product Overview & Core Advantages
The FRW144zz is a precision shielded ball bearing designed for demanding applications requiring reliable performance in compact spaces. Manufactured to ABEC1 tolerance class, this single row bearing delivers consistent operation and is engineered to handle primarily radial loads. Its inch-series dimensions (0.125" bore) make it ideal for replacement in American-made equipment and specialized machinery. The inclusion of stainless steel shields provides effective contamination protection, while the extended inner ring facilitates easier mounting and axial location.
FRW144zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FRW | Manufacturer's series prefix |
| 144 | Bore size code (corresponding to 0.125") |
| zz | Indicates double shielded construction on both sides for superior protection against contaminants |
FRW144zz Bearing Structural Features & Performance Benefits
- High-Quality Material Construction: Components are crafted from chrome steel (rings and balls) and stainless steel (cage and shields), ensuring excellent durability and corrosion resistance.
- Effective Sealing: The double stainless steel shields (zz) retain lubricant and effectively exclude dust and other particulates, enhancing bearing service life in contaminated environments.
- Optimized Internal Geometry: With 7 precision balls of 0.0394" diameter, the bearing achieves smooth operation and a radial dynamic load rating of 54 lbf.
- Precision & Stability: Built to ABEC1 standards with a controlled radial internal clearance (MC3 group), ensuring consistent performance and low noise.
- Extended Inner Ring: The design simplifies axial positioning and offers a larger contact surface for secure mounting.
FRW144zz Bearing Typical Application Areas
- Small precision electric motors and gearmotors
- Office machinery and computer peripherals (e.g., printers, scanners)
- Medical devices and laboratory equipment
- Instrumentation and control devices
- Small fans and blowers
- Textile machinery components
- Various light-duty industrial machinery requiring compact bearing solutions
