FRW1-4
FRW Series Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FRW1-4
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.2 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
Extended
Inner ring width
0.125"
Shoulder diameter inner ring
0.122"
Outer Ring Dimensions
Flange outer diameter
0.296"
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
54 lbf
Radial static load rating
17 lbf
Limiting speed
110 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:
$ 4.26
/ each
In Stock
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FRW1-4 Bearing Product Overview & Core Advantages
The FRW1-4 is a single row deep groove ball bearing designed for high-performance applications requiring precision and reliability. Engineered with an extended inner ring for simplified axial location and secure mounting, this bearing excels in handling radial loads efficiently. Manufactured to ABEC1 precision class standards, it offers consistent performance and is an ideal component for compact assemblies where space is at a premium. Its open design allows for versatile lubrication options to suit specific operational environments.
FRW1-4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FRW1-4 | The base model number, indicating a specific bearing size and internal geometry. |
| Open (Seal Type) | No integral seals or shields. This allows for higher limiting speeds and custom lubrication schemes but requires a clean operating environment or external sealing. |
| Extended Inner Ring | The inner ring protrudes beyond the bearing width, facilitating easier positioning and locking on a shaft. |
| MC3 (Radial Clearance) | Specifies a MC3 radial internal clearance group (0.00008" to 0.0005"), which is greater than normal. This is suitable for applications with thermal expansion challenges or where a looser fit is required. |
FRW1-4 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove raceway and seven high-precision chrome steel balls provide a robust design capable of handling the specified radial dynamic load rating of 54 lbf.
- High-Speed Capability: The combination of an open design, a lightweight stainless steel cage, and precision grinding enables a high limiting speed of 110,000 rpm, making it suitable for high-speed applications.
- Precision and Stability: Conformance to ABEC1 tolerance class ensures dimensional accuracy and smooth, low-vibration operation, contributing to the overall precision of the host system.
- Material Integrity: Constructed entirely from chrome steel for rings and balls, the bearing offers excellent wear resistance and durability, supporting a wide operating temperature range from -86 to 230 °F.
FRW1-4 Bearing Typical Application Areas
The FRW1-4 is engineered for demanding, compact mechanisms. Its typical applications include:
- High-Speed Small Motors: Ideal for spindle motors in precision tools, dental handpieces, and small fans.
- Precision Instruments: Used in optical encoders, gauges, and medical devices where accuracy and compact bearing dimensions are critical.
- Office Automation Equipment: Suitable for scanners, printers, and copiers requiring reliable, high-speed rotation.
- Small Gearboxes and Mechanisms: Provides robust support in compact drive systems and robotic joints.
