R166 2rs
R Series Miniature Bearings
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Part No.
Part No.
R166 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.85 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
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.06252"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
136 lbf
Radial static load rating
49 lbf
Limiting speed
50 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
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:
$ 1.13
/ each
In Stock
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R166 2rs Bearing Product Overview & Core Advantages
The R166 2RS is a sealed single row deep groove ball bearing designed for reliable performance in compact spaces. Engineered to primarily handle radial loads, this inch-series bearing offers a robust solution for applications requiring consistent operation. Its key advantages include simplified maintenance due to integrated sealing and a construction that ensures smooth, low-friction rotation. Manufactured with high-grade chrome steel components, it delivers dependable service and is compliant with RoHS and REACH standards, making it a versatile choice for various industrial settings.
R166 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| R166 | The basic bearing designation, indicating a specific inch-size deep groove ball bearing with a 0.1875" bore. |
| 2RS | Signifies that the bearing is equipped with contact rubber seals on both sides. This provides superior protection against contaminants and retains lubricant, enhancing bearing life. |
R166 2rs Bearing Structural Features & Performance Benefits
- Robust Load Capacity: The single row deep groove raceway and eight precision chrome steel balls are optimized to carry significant radial dynamic loads (136 lbf) and static loads (49 lbf), ensuring stable performance under stress.
- Effective Sealing & Contamination Resistance: The 2RS nitrile rubber seals make the bearing highly effective at excluding moisture, dust, and other particulates. This design is crucial for maintaining performance in harsh environments.
- Precision & Smooth Operation: Built to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), this bearing offers consistent running accuracy and low vibration, contributing to the overall efficiency of the assembly.
- Durable Construction: The combination of a stainless steel cage and chrome steel rings provides excellent resistance to wear and corrosion, supporting a long service life.
R166 2rs Bearing Typical Application Areas
This bearing is ideally suited for small-scale, precision mechanisms and devices, including:
- Small Electric Motors and Gearboxes
- Precision Instruments and Medical Devices
- Office Automation Equipment (e.g., printers, scanners)
- Light-Duty Power Tools and Appliances
- Robotics and Automation Actuators
