FR156 2rs
FR Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FR156 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.56 g
Tolerance class
ABEC1
Seal type
Sealed
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
Nitrile Rubber
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.32
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
FR156 2rs Bearing Product Overview & Core Advantages
The FR156 2RS is a high-performance miniature sealed ball bearing designed for precision applications requiring reliable operation in compact spaces. This single row deep groove ball bearing features integral rubber seals (2RS) for effective contamination exclusion and lubricant retention. Manufactured to ABEC1 precision tolerances, it offers excellent running accuracy and smooth operation. Its primary advantages include a robust radial dynamic load rating of 69 lbf, suitability for high-speed applications up to 53,000 rpm, and a wide operating temperature range from -86 to 230 °F. The combination of chrome steel rings, stainless steel cage, and nitrile rubber seals ensures long service life and consistent performance in demanding environments.
FR156 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FR156 | Standard bearing designation indicating specific inch dimensions: 0.1875" bore, 0.3125" OD, 0.125" width. |
| 2RS | Bearing is equipped with two rubber contact seals on both sides, providing superior protection against contaminants and effective lubricant retention. |
FR156 2rs Bearing Structural Features & Performance Benefits
- Optimized Sealing System: The dual nitrile rubber (NBR) contact seals (2RS) provide excellent exclusion of contaminants like dust and moisture while retaining lubricant, making the bearing suitable for dirty or humid environments and enhancing its maintenance-free operation.
- High-Speed Capability: The lightweight, corrosion-resistant stainless steel cage precisely guides the 10 high-grade chrome steel balls, minimizing friction and enabling stable operation at the high limiting speed of 53,000 rpm.
- Robust Load Capacity: The deep groove raceway and single row construction are engineered to handle significant radial loads (69 lbf dynamic, 27 lbf static) and moderate axial loads in both directions.
- Precision Engineering: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3: 0.00008" to 0.0005"), ensuring smooth, quiet, and vibration-free running, which is critical for precision instruments.
- Durable Material Construction: The combination of chrome steel rings and balls provides high hardness and wear resistance, contributing to the bearing's overall longevity and reliability.
FR156 2rs Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors, stepper motors, and servo motors used in robotics, drones, and medical devices.
- Office Automation Equipment: Commonly used in printers, scanners, copiers, and fax machines for paper feed rollers and scanner carriage guides.
- Instrumentation and Measurement Devices: Suitable for encoders, gauges, and other precision instruments where low noise and high accuracy are paramount.
- Consumer Electronics: Applied in computer cooling fans, small pumps, and various handheld electronic tools.
- Light-Duty Industrial Machinery: Used in conveyor systems, textile machinery, and other equipment requiring compact, reliable ball bearings.
