D/W R188-2RS1
D/W Series Stainless Steel Miniature Bearings
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D/W R188-2RS1 Bearing Product Overview & Core Advantages
The D/W R188-2RS1 is a single row deep groove ball bearing designed for high performance in compact spaces. Constructed entirely from stainless steel, it offers excellent corrosion resistance. As a sealed bearing, it is pre-lubricated with grease, providing long-term, maintenance-free operation and protection from contaminants. Its primary advantage lies in its ability to handle radial loads efficiently while accommodating moderate axial loads, making it a reliable and durable solution for applications demanding precision and longevity.
D/W R188-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer designation for a specific series of inch-sized bearings. |
| R188 | The basic bearing designation, defining the core dimensions and type. |
| 2RS1 | Indicates the bearing is fitted with two rubber contact seals (RS), one on each side. The "1" suffix often denotes a specific seal design, providing superior protection against moisture and debris. |
D/W R188-2RS1 Bearing Structural Features & Performance Benefits
All-Stainless-Steel Construction: The rings, balls, and cage are made of stainless steel, offering superior corrosion resistance and making the bearing suitable for harsh environments, including those with exposure to water or chemicals.
Deep Groove Raceway & High-Quality Balls: The deep groove geometry allows for smooth operation and the accommodation of both radial and axial loads. Precision-ground balls ensure low vibration and noise levels.
Integrated Sealing & Pre-Lubrication: The 2RS1 contact seals effectively retain grease and exclude contaminants, enabling maintenance-free operation throughout the bearing's service life. The pre-applied grease is suitable for a wide temperature range of -30°C to 120°C.
Precision & Load Capacity: Built to P0 tolerance class and standard CN radial internal clearance, this bearing provides reliable and consistent performance. It features a dynamic load rating of 139 lbf and a limiting speed of 30,000 rpm, making it suitable for demanding, high-speed applications.
D/W R188-2RS1 Bearing Typical Application Areas
The D/W R188-2RS1 is ideally suited for a wide range of applications where compact size, corrosion resistance, and sealed-for-life operation are critical. Key industries and equipment include:
- Medical and Dental Equipment: Small motors, pumps, and handheld tools.
- Food and Beverage Processing: Conveyor systems and machinery requiring frequent washdowns.
- Precision Instruments and Optical Devices: Scanners, encoders, and measuring instruments.
- Small Electric Motors and Gearboxes: Used in fans, power tools, and robotics.
- Office Automation Equipment: Printers, copiers, and scanners.
