FRW155zz
FRW Series Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FRW155zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.72 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.15625"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1562"
Shoulder diameter inner ring
0.221"
Outer Ring Dimensions
Flange outer diameter
0.359"
Flange thickness
0.036"
Ball & Washer Dimensions
Ball diameter
0.0394"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
69 lbf
Radial static load rating
27 lbf
Limiting speed
53 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:
$ 3.58
/ each
In Stock
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FRW155zz Bearing Product Overview & Core Advantages
The FRW155zz is a precision miniature ball bearing designed for high-performance applications requiring compact dimensions and reliable operation. As a single row radial ball bearing with shielded construction, it excels in handling moderate radial loads while offering protection from contamination. Its extended inner ring facilitates easier mounting and axial location, making it an ideal choice for applications demanding high rotational accuracy and consistent performance within a compact envelope.
FRW155zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FRW155 | Specific manufacturer series and size designation. |
| zz | Indicates the bearing is equipped with shields on both sides (non-contact). This provides effective protection against dust and other particulate contaminants while minimizing friction. |
FRW155zz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore diameter of 0.15625" and a weight of only 0.72 g, this bearing is engineered for space-constrained and weight-sensitive applications.
- Shielded Protection: The 300 Series Stainless Steel shields retain lubricant and exclude contaminants, enhancing bearing life and reliability without the added friction of contact seals.
- High-Speed Capability: Featuring a stainless steel cage and optimized internal geometry, the bearing supports a limiting speed of 53,000 rpm, making it suitable for high-speed spindles and miniature motors.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance (0.00008" to 0.0005"), ensuring smooth and precise operation.
- Robust Construction: Components made from chrome steel (rings and balls) provide excellent wear resistance and durability under the specified radial dynamic load rating of 69 lbf.
FRW155zz Bearing Typical Application Areas
This miniature bearing is ideally suited for:
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Optical Encoders and instrumentation
- Small Fans and blowers
- Office Automation Equipment (e.g., printers, scanners)
- Radio-controlled models and drones
