FR168
FR Series Flanged Miniature Bearings
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Part No.
Part No.
FR168
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.66 g
Tolerance class
ABEC1
Seal type
Open
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
0.023"
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
0.00008" to 0.0005"
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.32
/ each
In Stock
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FR168 Bearing Product Overview & Core Advantages
The FR168 is a single row deep groove ball bearing engineered for exceptional performance in compact spaces. Designed to primarily handle radial loads, this inch-series bearing offers a robust solution for applications demanding high precision and reliability. Its construction from high-grade chrome steel and a stainless steel cage ensures durability and consistent operation. With an ABEC1 tolerance class and standardized internal clearance, it provides dependable performance for a wide range of industrial uses, making it an ideal choice for engineers seeking a cost-effective and high-quality precision bearing.
FR168 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| FR168 | Standard model designation for this specific bearing size and configuration. |
| Open (Seal Type) | The bearing is unsealed, allowing for custom lubrication strategies and optimal for high-speed applications where seal drag is a concern. |
| ABEC1 | Specifies the precision class, indicating standard tolerances for runout and dimensional accuracy suitable for a broad range of general applications. |
| MC3 (Radial Clearance) | Defines a "Normal" range of radial internal clearance (0.00008" to 0.0005"), suitable for most operating conditions. |
FR168 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove design is fundamentally engineered to support significant radial loads (71 lbf dynamic, 31 lbf static), providing reliable performance under stress.
- High-Speed Capability: Featuring a lightweight stainless steel cage that guides the 11 precision balls, this bearing is capable of achieving a limiting speed of 48,000 rpm, making it an excellent high-speed bearing candidate.
- Precision Engineering: Manufactured to ABEC1 standards, it ensures low vibration and smooth rotation, which is critical for applications requiring operational accuracy.
- Robust Material Construction: The use of chrome steel for rings and balls provides high hardness and wear resistance, contributing to a long service life and consistent performance across its specified temperature range (-86 to 230 °F).
FR168 Bearing Typical Application Areas
This versatile ball bearing is ideally suited for a multitude of compact and high-speed mechanisms, including:
- Small precision electric motors and spindles
- Medical and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Instrumentation and control devices
- Robotic joints and small gearboxes
