R3 2rs
R Series Miniature Bearings
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Part No.
Part No.
R3 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.95 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
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.196"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
249 lbf
Radial static load rating
88 lbf
Limiting speed
43 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:
$ 0.93
/ each
In Stock
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R3 2rs Bearing Product Overview & Core Advantages
The R3-2RS is a single row deep groove ball bearing designed for exceptional performance in compact spaces. This inch-sized bearing features integral rubber seals (2RS) on both sides, providing superior protection against contaminants. Engineered for primarily radial load applications, it offers reliable operation and is pre-lubricated for immediate use. Its compact dimensions (0.1875" bore, 0.5" OD) and ABEC1 precision make it an ideal choice for applications demanding high reliability and consistent performance.
R3 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| R3 | Bearing series designation, indicating specific internal geometry and size in inches. |
| 2RS | Contact rubber seals on both sides. Provides excellent exclusion of contaminants and retention of lubricant. |
R3 2rs Bearing Structural Features & Performance Benefits
- Robust Construction & High Reliability: Manufactured from chrome steel rings and balls with a stainless steel cage, this bearing ensures durability and consistent operation under radial dynamic loads up to 249 lbf.
- Effective Sealing & Contamination Resistance: The Nitrile rubber seals (2RS) effectively shield the internal components from dust, moisture, and other pollutants, significantly extending service life in harsh environments.
- Optimized Internal Geometry: The deep groove raceway and 7 high-precision balls (0.0937" diameter) facilitate smooth rotation and efficient load distribution.
- Wide Operating Temperature Range: Suitable for applications from -86 to 230 °F, offering versatility across various operating conditions.
R3 2rs Bearing Typical Application Areas
This sealed deep groove ball bearing is commonly specified in:
- Small Electric Motors and Gear Motors
- Precision Instruments and Medical Devices
- Office Automation Equipment (Printers, Scanners)
- Cooling Fans and Small Pumps
- Various Light-Duty Industrial Machinery
