FR144zz
FR Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FR144zz
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
Standard
Outer Ring Dimensions
Flange outer diameter
0.296"
Flange thickness
0.031"
Ball & Washer Dimensions
Ball diameter
0.03941"
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
MC3
Radial internal clearance
0.00008" to 0.0005"
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:
$ 1.32
/ each
In Stock
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FR144zz Bearing Product Overview & Core Advantages
The FR144zz is a precision shielded ball bearing designed for demanding industrial applications requiring reliable performance in compact spaces. As a single row deep groove ball bearing, it excels at handling primarily radial loads while offering smooth operation. Manufactured to ABEC1 tolerance class, this bearing provides consistent performance and is an ideal component for applications where space is at a premium but reliability is paramount. Its inch-sized dimensions make it a standard choice for replacement and OEM designs in various equipment.
FR144zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FR144 | Bearing series and size designation (Inch series) |
| zz | Indicates the bearing is equipped with shields on both sides (2Z), providing protection against contamination while allowing higher speeds compared to contact seals. |
FR144zz Bearing Structural Features & Performance Benefits
- Robust Construction & High Rigidity: The single row deep groove raceway and chrome steel rings provide a rigid structure capable of handling dynamic loads effectively.
- Optimized Load Capacity: With a radial dynamic load rating of 54 lbf and a radial static load rating of 17 lbf, it is engineered for sustained performance under load.
- Enhanced Contamination Protection: The 300 Series Stainless Steel shields (zz) protect the internal components from dust and debris, extending bearing life without significantly impeding speed.
- High-Speed Capability: Featuring a stainless steel cage and optimized internal geometry, it supports a limiting speed of 67,000 rpm, making it suitable for high-speed applications.
- Precision Operation: Manufactured to ABEC1 precision standards with a controlled radial internal clearance (MC3: 0.00008" to 0.0005"), ensuring smooth and quiet running.
FR144zz Bearing Typical Application Areas
- Small Precision Electric Motors and Spindles
- Medical and Dental Handpieces
- Office Automation Equipment (Printers, Scanners)
- Instrumentation and Control Devices
- RC Models and Small Drone Motors
- Textile Machinery Guides and Spindles
