FR1-4
FR Series Flanged Miniature Bearings
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Part No.
Part No.
FR1-4
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.46 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.07813"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0937"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.296"
Flange thickness
0.023"
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
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:
$ 2.21
/ each
In Stock
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FR1-4 Bearing Product Overview & Core Advantages
The FR1-4 is a precision miniature ball bearing designed for applications demanding high reliability in compact spaces. As a single row radial ball bearing with an open design, it excels in handling radial loads efficiently. Its inch dimensions and ABEC1 tolerance class make it a robust and cost-effective solution for high-speed operation, with a limiting speed of 67,000 rpm. The bearing requires lubrication and operates across a wide temperature range from -86 to 230 °F.
FR1-4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FR1-4 | The base model number, indicating the specific bearing size and series. |
| Open (Construction) | No seals or shields, allowing for higher speeds and easy re-lubrication, but requiring a clean operating environment. |
| ABEC1 | The tolerance class, defining standard precision levels for runout and dimensional accuracy. |
| MC3 | Specifies the radial internal clearance group (0.00008" to 0.0005"), suitable for general applications. |
FR1-4 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open construction and stainless steel cage minimize friction and drag, enabling a high limiting speed of 67,000 rpm, making it an excellent high-speed bearing.
- Robust Load Capacity: Manufactured from chrome steel for both rings and balls, this bearing offers a radial dynamic load rating of 54 lbf and a static rating of 17 lbf, ensuring durability under load.
- Precision Engineering: The ABEC1 tolerance class guarantees consistent dimensional accuracy and smooth operation, which is critical for precision applications.
- Compact and Lightweight: With an ultra-compact design (0.07813" bore, 0.25" OD) and a weight of only 0.46 grams, it is ideal for space-constrained assemblies.
FR1-4 Bearing Typical Application Areas
- Small DC Motors and Gear Motors
- Precision Instruments and Optical Encoders
- Medical Devices and Dental Handpieces
- Robotics and Small Actuators
- Computer Cooling Fans and Spindles
