FR156zz
FR Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FR156zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.56 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
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
Standard
Outer Ring Dimensions
Flange outer diameter
0.359"
Flange thickness
0.036"
Ball & Washer Dimensions
Ball diameter
0.03941"
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:
$ 1.32
/ each
In Stock
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FR156zz Bearing Product Overview & Core Advantages
The FR156zz is a precision miniature ball bearing designed for demanding applications requiring compact size and reliable performance. As a single row radial ball bearing with shielded construction, it excels in handling moderate radial loads while offering protection from contaminant ingress. Its inch-series dimensions and ABEC1 tolerance class make it an ideal component for high-speed, precision mechanisms where space is at a premium and consistent operation is critical.
FR156zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FR156 | The base bearing designation, indicating specific inch dimensions (Bore: 0.1875", OD: 0.3125", Width: 0.125"). |
| zz | Denotes double-shielded construction (one shield on each side). The shields protect the internal components from dust and debris while allowing for high-speed operation. |
FR156zz Bearing Structural Features & Performance Benefits
- Compact & Robust Design: The single-row construction with a stainless steel cage ensures stable operation and a compact bearing size, making it suitable for densely packed assemblies.
- Shielded Protection: The 300 Series stainless steel shields offer effective contamination protection, extending bearing service life without the added friction of contact seals, contributing to its high limiting speed of 53,000 rpm.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3: 0.00008" to 0.0005"), this bearing provides smooth, low-vibration, and precise running essential for sensitive applications.
- High-Quality Materials: Rings and balls made from chrome steel provide excellent durability and load capacity (Dynamic: 69 lbf, Static: 27 lbf), while the stainless steel cage resists corrosion.
FR156zz Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors, stepper motors, and coreless motors.
- Medical and Dental Devices: Used in handheld surgical tools, dental handpieces, and pump drives requiring reliability and compact size.
- Office Automation Equipment: Critical components in printers, scanners, and small fans.
- Instrumentation and Robotics: Supports shafts and axles in encoders, sensors, and small robotic joints.
- Radio Control Models: Commonly found in high-performance servos, drone motors, and miniature gearboxes.
