D/W R3A-2RS1
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W R3A-2RS1
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0049 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.18748"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.625"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.19598"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
192 lbf
Radial static load rating
71 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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D/W R3A-2RS1 Bearing Product Overview & Core Advantages
The D/W R3A-2RS1 is a sealed single row deep groove ball bearing engineered for precision and reliability in demanding applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to efficiently handle radial loads while providing a compact and durable solution. The integral contact seals (2RS1) retain lubricant and effectively exclude contaminants, ensuring long service life and minimal maintenance, making it ideal for applications requiring high reliability and cleanliness.
Model Code Breakdown
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| D/W | Manufacturer Series / Inch Designation | Indicates a specific product series from the manufacturer, designed to inch system measurements. |
| R3 | Bore Size Code | Specifies the bore diameter of 3/16" (0.1875"). |
| A | Internal Design | Denotes a specific internal geometry, potentially optimized for load distribution or noise reduction. |
| 2RS1 | Seal Type | Signifies that the bearing is fitted with two contact seals, one on each side. The "RS1" type provides effective protection against contaminants and retains grease. |
D/W R3A-2RS1 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments, including those with exposure to moisture or chemicals.
- Robust Sealing: The 2RS1 contact seals are a critical feature. They not only protect the internal components from dust, dirt, and moisture but also securely retain the pre-applied grease, enabling a maintenance-free operation throughout the bearing's service life.
- Precision & Load Capacity: Manufactured to P0 tolerance class with a standard CN radial internal clearance, this bearing ensures consistent performance and smooth operation. With a dynamic load rating of 192 lbf and a static load rating of 71 lbf, it is capable of handling significant radial loads for its compact size.
- Optimized for Performance: The deep groove raceway and precision-ground components contribute to low noise and vibration levels. The bearing is pre-lubricated with grease suitable for a temperature range of -30°C to 120°C.
D/W R3A-2RS1 Bearing Typical Application Areas
The D/W R3A-2RS1 is versatile and finds use in a wide range of precision equipment and devices, including:
- Precision Instruments and Medical Devices: Ideal for small motors, encoders, and surgical handpieces where reliability, cleanliness, and corrosion resistance are paramount.
- Food and Beverage Processing Equipment: Its stainless-steel construction and sealed design meet the requirements for wash-down environments and compliance with hygiene standards.
- Small Electric Motors and Gearboxes: Provides durable support in compact fractional horsepower motors, fans, and drives.
- Office Automation Equipment: Used in printers, scanners, and copiers for smooth and quiet operation.
- Robotics and Automation: Suitable for small joints, guides, and actuators requiring precise motion control.
