D/W R1-2Z
D/W Series Stainless Steel Miniature Bearings
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Materials
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D/W R1-2Z Bearing Product Overview & Core Advantages
The D/W R1-2Z is a precision miniature ball bearing designed for demanding applications requiring high reliability and compact design. As a single row deep groove ball bearing with shielded construction, it excels at handling radial loads while offering protection from contaminant ingress. Manufactured entirely from stainless steel and pre-lubricated with grease, it delivers excellent corrosion resistance and consistent performance across a wide temperature range from -30° to 120 °C, making it an ideal choice for high-precision, long-life applications.
D/W R1-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Benefit |
|---|---|---|
| R1 | Bearing series designation for a specific inch-size miniature bearing. | Defines the compact bearing dimensions (Bore: 0.05556", OD: 0.18748", Width: 0.10941"). |
| 2Z | Non-contact steel shields on both sides. | Provides effective protection against dust and debris while maintaining high-speed capability (up to 100,000 rpm). |
D/W R1-2Z Bearing Structural Features & Performance Benefits
- Robust Construction: The single row deep groove raceway and stainless steel cage provide stable operation and high rotational accuracy under radial dynamic load ratings of 30 lbf.
- Shielded Protection: The non-contact 2Z shields retain lubrication and exclude contaminants, significantly enhancing bearing service life without increasing rotational torque.
- Precision & Material Excellence: Built to P0 tolerance class with a standard CN radial internal clearance. All components, including rings, balls, and cage, are made from stainless steel, ensuring superior corrosion resistance and operational consistency.
- Maintenance-Free Operation: Pre-lubricated with grease, the bearing is ready for immediate use and requires no relubrication, simplifying assembly and reducing long-term maintenance costs.
D/W R1-2Z Bearing Typical Application Areas
The D/W R1-2Z is ideally suited for compact mechanisms and precision instruments where reliability and size are critical. Common applications include:
- Small Precision Motors and stepper motors
- Medical and Dental Handpieces
- Optical Encoders and Scanning Devices
- Instrumentation and Control Systems
- Office Automation Equipment
