FR168zz
FR Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FR168zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.73 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
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
0.036"
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
11
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
71 lbf
Radial static load rating
31 lbf
Limiting speed
48 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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FR168zz Bearing Product Overview & Core Advantages
The FR168zz is a precision miniature ball bearing designed for applications demanding compact size and reliable performance. As a single row deep groove ball bearing, it is optimized to handle primarily radial loads efficiently. Its inch-series dimensions and shielded construction make it an ideal component for high-speed, small-scale mechanisms requiring consistent operation and protection from contamination.
FR168zz Bearing Model Code Explained, Specifications & Naming Convention
The model number FR168zz provides key technical specifications:
- FR168: Denotes the specific bearing series and size in inches.
- zz: Indicates the bearing is equipped with shields on both sides. These non-contact shields help retain lubrication and protect the internal components from large particulate contaminants.
FR168zz Bearing Structural Features & Performance Benefits
This bearing's design delivers several critical performance advantages:
- High-Speed Capability: The combination of a stainless steel cage, precision-ground chrome steel components, and optimized internal geometry allows for a high limiting speed of 48,000 rpm.
- Radial Load Capacity: Engineered to handle a dynamic radial load of 71 lbf and a static radial load of 31 lbf, providing reliable performance under stress.
- Precision & Stability: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3), ensuring smooth and predictable operation.
- Durability & Corrosion Resistance: Components made from chrome steel and a 300 series stainless steel shield offer excellent wear resistance and protection against corrosion.
FR168zz Bearing Typical Application Areas
The FR168zz is widely used in compact, high-speed devices across various industries, including:
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Robotics and miniature gearboxes
- Office Automation Equipment such as printers and scanners
- Instrumentation and sensitive measurement devices
