FRW1
FRW Series Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FRW1
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.25 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.05556"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.1875"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0781"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1094"
Shoulder diameter inner ring
0.093"
Outer Ring Dimensions
Flange outer diameter
0.234"
Flange thickness
0.023"
Ball & Washer Dimensions
Ball diameter
0.0394"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
44 lbf
Radial static load rating
12 lbf
Limiting speed
90 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
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 15.97
/ each
In Stock
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FRW1 Bearing Product Overview & Core Advantages
The FRW1 is a high-precision, inch-series single row ball bearing engineered for demanding applications requiring compact design and reliable performance. Its extended inner ring facilitates secure mounting and axial location. Manufactured to ABEC1 precision tolerances, this bearing is designed to handle significant radial loads while operating efficiently across a wide temperature range from -86 to 230 °F. Its open design allows for custom lubrication strategies, making it a versatile and robust solution for high-speed and precision mechanisms.
FRW1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FRW1 | Base model designation for this specific inch-series, single row ball bearing with an extended inner ring. |
| Open (Seal Type) | No integral seals or shields. This allows for higher limiting speeds and custom lubrication but requires a clean operating environment or external sealing. |
| Extended Inner Ring | The inner ring protrudes beyond the bearing width, providing a positive locating surface and simplifying axial positioning. |
| 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 applications with moderate operational temperature differentials. |
FRW1 Bearing Structural Features & Performance Benefits
- Optimized Single Row Design: The single row of seven precision balls ensures low friction and enables high limiting speeds up to 90,000 rpm, making it an excellent high-speed bearing.
- Robust Load Capacity: With a dynamic load rating of 44 lbf and a static load rating of 12 lbf, it provides reliable performance under substantial radial loads.
- Premium Material Construction: The combination of chrome steel rings and balls with a stainless steel cage ensures high durability, corrosion resistance, and stable operation.
- Precision Internal Clearance: The MC3 radial clearance is optimized to accommodate thermal expansion during high-speed operation, preventing preload and ensuring smooth running.
- Compact and Lightweight: With an overall weight of just 0.25 g and compact bearing dimensions (0.1875" OD, 0.0781" width), it is ideal for space-constrained and weight-sensitive applications.
FRW1 Bearing Typical Application Areas
- Precision Instrumentation: Used in sensitive measuring devices, optical encoders, and laboratory equipment where compact size and high-speed capability are critical.
- Small Electric Motors: Ideal for spindle motors in drones, small fans, and medical device motors requiring high RPM and reliability.
- Office Automation Equipment: Commonly found in high-speed scanners, printers, and copiers.
- Textile Machinery: Suitable for guides and tensioning rollers in high-speed spinning and weaving machines.
