D/W R2-5
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W R2-5
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0005 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.31252"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.10941"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
72 lbf
Radial static load rating
20 lbf
Limiting speed
95 X 1000 rpm
Lubrication
None
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 R2-5 Bearing Product Overview & Core Advantages
The D/W R2-5 is a precision single row deep groove ball bearing engineered for high-performance applications requiring exceptional reliability. Manufactured entirely from stainless steel, it offers superior corrosion resistance. This bearing is designed to primarily handle radial loads and is characterized by its compact, lightweight design, making it ideal for space-constrained assemblies. Its open design allows for versatile lubrication options, while the standard CN radial internal clearance and P0 tolerance class ensure consistent performance and easy integration into various precision mechanisms.
D/W R2-5 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Code | Technical Meaning & Implication |
|---|---|---|
| Manufacturer Prefix | D/W | Designates the manufacturer series (D/W). |
| Bore Size Code | R2-5 | Indicates a bore diameter of 1/8" (0.125"). |
| Seal Type | (None / Open) | The bearing is open, allowing for custom lubrication and facilitating high-speed operation with minimal friction. |
D/W R2-5 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing excellent resistance to corrosion and enabling use in harsh environments and clean applications.
- High-Speed Capability: The single row deep groove design and open construction contribute to a high limiting speed of 95,000 rpm, making it suitable for demanding high-velocity applications.
- Precision Performance: Manufactured to ABEC 1 (P0) tolerance class with standard CN radial internal clearance, ensuring smooth operation, reduced vibration, and reliable performance in precision assemblies.
- Radial Load Capacity: Engineered to efficiently carry radial loads with a dynamic load rating of 72 lbf and a static load rating of 20 lbf.
- Versatile Lubrication: The open seal type allows for the application of specialized lubricants tailored to specific operational needs, including extreme temperature ranges from -30°C to 120°C.
D/W R2-5 Bearing Typical Application Areas
This bearing is ideally suited for a wide range of compact and precision devices, including:
- Small Precision Motors and Spindles
- Medical and Dental Instruments
- Optical Encoders and Scanning Equipment
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation and Control Systems
- Food Processing and Packaging Machinery (where corrosion resistance is critical)
