D/W R0
D/W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
D/W R0
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0001 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.046875"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.15618"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.06252"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
14 lbf
Radial static load rating
4 lbf
Limiting speed
140 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 R0 Bearing Product Overview & Core Advantages
The D/W R0 is a high-precision, single row deep groove ball bearing designed for exceptional performance in compact, demanding applications. Manufactured entirely from stainless steel, it offers superior corrosion resistance and is ideal for environments where reliability is critical. This bearing is engineered to handle primarily radial loads and is characterized by its extremely small bore diameter of 0.046875", making it a perfect solution for miniature instruments and high-speed mechanisms requiring a compact footprint and high operational integrity.
D/W R0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W R0 | Designates the specific bearing series with an inch-sized bore. |
| (No Seal Suffix) | Open construction, allowing for easy re-lubrication and optimal for high-speed applications where friction from contact seals is a concern. |
| (Implied by Spec) | P0 tolerance class and CN radial internal clearance are standard, ensuring consistent performance and interchangeability. |
D/W R0 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 or washdown environments. This also contributes to a lower weight of only 0.0001 kg.
- High-Speed Capability: The open design and precision-ground components allow for a high limiting speed of 140,000 rpm, making it suitable for very fast-rotating spindles and small motors.
- Precision & Reliability: Built to ABEC 1 (P0) tolerance standards with a tightly controlled bore diameter tolerance, this bearing ensures smooth, low-vibration operation and reliable performance in precision instruments.
- Versatile Operating Range: With a temperature range of -30°C to 120°C, it performs reliably in a wide array of operational conditions.
D/W R0 Bearing Typical Application Areas
This miniature deep groove ball bearing is ideally suited for applications requiring small bearing dimensions and high-speed operation, including:
- Miniature and Instrument Motors
- Precision Medical Devices and Dental Handpieces
- Optical Encoders and Scanning Mechanisms
- Small Precision Gearboxes
- Radio Control Models and Drones
