D/W R166
D/W Series Stainless Steel Miniature Bearings
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D/W R166 Bearing Product Overview & Core Advantages
The D/W R166 is a precision single row deep groove ball bearing designed for high-performance applications requiring exceptional reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is engineered to handle primarily radial loads and is characterized by its compact inch dimensions and open design, facilitating high-speed operation up to 80,000 rpm. Its P0 tolerance class and standardized CN radial internal clearance ensure consistent performance and interchangeability, making it an ideal component for demanding B2B and OEM applications.
D/W R166 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer's prefix (Dunk/Whitney). |
| R166 | The specific bearing size designation in the manufacturer's inch series. |
| Open | No seals or shields, allowing for higher speeds and easy re-lubrication. |
| P0 | Standard tolerance class (Normal). |
| CN | Normal group radial internal clearance. |
D/W R166 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made of stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments and wash-down applications.
- High-Speed Capability: The open design and precision engineering minimize friction and heat generation, enabling a high limiting speed of 80,000 rpm.
- Radial Load Capacity: As a deep groove ball bearing, it is optimized to carry significant radial loads (91 lbf dynamic, 31 lbf static) with high efficiency.
- Precision & Interchangeability: Manufactured to P0 tolerance with CN clearance, ensuring reliable performance and easy replacement in standardized assemblies.
- Flexible Lubrication: The open structure allows for the use of various lubricants tailored to specific application needs, from oil mist to grease.
D/W R166 Bearing Typical Application Areas
The D/W R166 is ideally suited for applications requiring compact size, high speed, and corrosion resistance. Key industries and equipment include:
- Medical and Dental Equipment: High-speed handpieces, small pumps, and precision instruments.
- Food and Beverage Processing: Conveyor systems, mixers, and filling machines where wash-down is common.
- Precision Instruments and Optics: Scanners, encoders, and small measuring devices.
- Small Motors and Gearboxes: Servo motors, stepper motors, and miniature drives.
- Office Automation Equipment: Printers, scanners, and copiers.
