D/W R2-6 R-2Z
D/W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
D/W R2-6 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0012 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.375"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.14059"
Width tolerance
-0.005" to 0"
Outer Ring Dimensions
Flange outer diameter
0.42201"
Flange thickness
0.03098"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
82 lbf
Radial static load rating
26 lbf
Limiting speed
63 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
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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D/W R2-6 R-2Z Bearing Product Overview & Core Advantages
The D/W R2-6 R-2Z is a precision miniature ball bearing designed for demanding applications requiring high reliability and compact design. As a single row, deep groove ball bearing, it is engineered to primarily support radial loads. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include a compact flange for secure mounting, shielded design for contamination protection, and pre-lubrication for long service life, making it an ideal choice for high-speed, low-torque operations in confined spaces.
D/W R2-6 R-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer designation (Dunk/Whitney) |
| R2-6 | Bearing series and size code (0.125" bore, 0.375" OD) |
| R | Flanged outer ring |
| 2Z | Shielded on both sides. This provides effective protection against contaminant ingress while maintaining low friction and enabling high-speed operation. |
D/W R2-6 R-2Z Bearing Structural Features & Performance Benefits
- Flanged Design & High Rigidity: The integrated flange on the outer ring simplifies mounting and positioning, enhancing system stability and rigidity. This is critical for maintaining precision in compact assemblies.
- Radial Load Capacity: As a deep groove ball bearing, it is optimized to carry significant radial loads (82 lbf dynamic, 26 lbf static) efficiently.
- High-Speed Performance: The combination of a stainless steel cage, precision-ground components, and shielded design allows for a high limiting speed of 63,000 rpm.
- Maintenance-Free & Long Life: The bearing is pre-lubricated with grease and features non-contact shields (2Z), creating a sealed-for-life unit that requires no relubrication, reducing maintenance costs.
- Corrosion Resistance: All components (rings, balls, cage) are made of stainless steel, ensuring reliable performance in humid or corrosive environments within the specified temperature range of -30° to 120 °C.
D/W R2-6 R-2Z Bearing Typical Application Areas
This bearing is ideally suited for applications where miniature size, high speed, and corrosion resistance are paramount. Key sectors include:
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment.
- Small Motors and Gearboxes: Stepper motors, servo motors, and miniature DC motors.
- Office Automation Equipment: Printers, scanners, and copiers.
- Robotics and Automation: Small robotic joints, conveyor belt guides, and pick-and-place mechanisms.
- Consumer Electronics: Drones, high-performance computer cooling fans.
