D/W R1-5 R-2Z
D/W Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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D/W R1-5 R-2Z Bearing Product Overview & Core Advantages
The D/W R1-5 R-2Z is a miniature single row deep groove ball bearing designed for applications demanding high precision and reliability in compact spaces. Engineered from stainless steel throughout, it offers excellent corrosion resistance. Its key advantage lies in its ability to efficiently handle radial loads, while the integral shielded (2Z) design on both sides retains factory-applied grease and protects against contamination, ensuring long-term, maintenance-free operation. This makes it an ideal solution for high-speed, miniature mechanisms requiring consistent performance.
Model Code Breakdown
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| D/W R1-5 | Basic Bearing Designation | Identifies this as a specific series of miniature inch-size deep groove ball bearings. |
| R | Flange Design | Indicates the bearing is equipped with an outer ring flange. This feature simplifies mounting and positioning within a housing. |
| 2Z | Seal/Shield Type | Signifies that the bearing is shielded on both sides. This provides effective protection against particulate contaminants while allowing for high-speed operation. |
D/W R1-5 R-2Z Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integrated outer ring flange (0.35902" outer diameter) facilitates secure and precise axial location, simplifying assembly and reducing the need for complex housing designs.
- Superior Corrosion Resistance: Manufactured entirely from stainless steel (rings, balls, and cage), this bearing is ideally suited for applications exposed to moisture, chemicals, or demanding environments, ensuring long service life.
- Optimized for High-Speed Operation: The combination of a stainless steel cage, precision-ground components, and shielded design enables a high limiting speed of 80,000 rpm, making it suitable for demanding miniature drives.
- Pre-Lubricated & Maintenance-Free: Factory-filled with grease and sealed with non-contact shields, the bearing is ready for immediate use and requires no relubrication, reducing lifetime maintenance costs.
- Precision Tolerances: Built to ABEC 1 (P0) tolerance class with a CN group radial internal clearance, ensuring smooth and consistent running performance.
D/W R1-5 R-2Z Bearing Typical Application Areas
The D/W R1-5 R-2Z is engineered for high-performance miniature and instrument applications, including:
- Precision Small Motors (e.g., stepper motors, coreless motors)
- Medical and Dental Handpieces
- Optical Encoders and Scanners
- Instrumentation and Control Devices
- Small Fans and Blowers
- Office Automation Equipment (e.g., printers, scanners)
