D/W R133 R
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 R133 R Bearing Product Overview & Core Advantages
The D/W R133 R is a single row deep groove ball bearing designed for precision applications requiring high reliability in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its open design facilitates high-speed operation, while its inch dimensions make it ideal for replacement in legacy equipment and specialized machinery. This bearing is engineered to handle primarily radial loads efficiently, providing a robust and durable solution for demanding environments.
D/W R133 R Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer's prefix (Diamond / WONSTAR). |
| R133 | The bearing's specific series and size designation. |
| R | Indicates a flanged outer ring. This feature simplifies bearing mounting and positioning within a housing, enhancing assembly accuracy and rigidity. |
Note: The absence of a seal suffix (e.g., 2Z, RS) confirms the open (unsealed) nature of this bearing. The specification "Lubrication: None" indicates it is supplied without grease, allowing for custom lubrication based on application needs.
D/W R133 R Bearing Structural Features & Performance Benefits
- Flanged Design for Easy Installation & Alignment: The integrated flange on the outer ring ensures precise axial location and simplifies housing design, reducing assembly time and cost.
- All-Stainless Steel Construction: Rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments, including those requiring washdown or exposure to chemicals.
- High-Speed Capability: The open structure and stainless steel cage minimize friction and allow for efficient heat dissipation, supporting a high limiting speed of 120,000 rpm.
- Precision Tolerances: Built to ABEC 1 (P0) tolerance class with a CN group radial internal clearance, ensuring consistent performance and smooth, quiet operation.
- Compact & Lightweight: With a small bore diameter of 0.0937" and a weight of only 0.0001 kg, it is ideal for applications where space and weight are critical constraints.
D/W R133 R Bearing Typical Application Areas
- Precision Instruments: Optical encoders, gyroscopes, and small measuring devices.
- Small Motors & Gearboxes: High-speed spindle motors in dental handpieces, miniature DC motors, and precision gearheads.
- Medical Equipment: Surgical tools, pumps, and scanners where corrosion resistance and reliability are paramount.
- Office Automation: Scanners, printers, and copiers.
- Robotics: Joints and actuators in small-scale robotic arms.
