SR3A 2rs
SR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SR3A 2rs Bearing Product Overview & Core Advantages
The SR3A 2RS is a single row deep groove ball bearing engineered for reliable performance in demanding applications. This inch-series bearing features a compact design with a 0.1875" bore diameter and is constructed entirely from stainless steel for superior corrosion resistance. Its key advantage lies in the 2RS designation, indicating double rubber seals that effectively retain lubrication and exclude contaminants, making it an ideal choice for applications requiring long-term, maintenance-free operation. It is designed to primarily handle radial loads and is suitable for a wide operating temperature range.
SR3A 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SR3A | Standard inch-series bearing designation specifying the bore and outside diameter. | Defines the core bearing dimensions for fit and interchangeability. |
| 2RS | Double Contact Rubber Seals on both sides. | Provides excellent protection against contamination and grease leakage, enhancing bearing life and reliability. |
SR3A 2rs Bearing Structural Features & Performance Benefits
Deep Groove Raceway & Single Row Design: The geometry of the raceway is optimized for handling radial loads efficiently. The single row construction contributes to a compact cross-section, saving space in assembly designs.
Stainless Steel Construction: All critical components, including rings, balls, and cage, are made from stainless steel. This provides excellent resistance to rust and corrosion, making the bearing suitable for harsh environments, including those involving moisture or certain chemicals.
Double Rubber Seals (2RS): The nitrile rubber seals make contact with the inner ring, creating an effective barrier. This design retains lubricant within the bearing and robustly excludes dust, dirt, and other particulate contaminants. This feature is critical for achieving a long service life with minimal maintenance.
Precision & Clearance: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance, this bearing offers a balance of precision and operational reliability for a wide range of industrial applications.
SR3A 2rs Bearing Typical Application Areas
The SR3A 2RS is versatile and finds use in various sectors requiring a reliable, sealed, and corrosion-resistant ball bearing. Common applications include:
- Food and Beverage Processing Equipment (due to stainless steel construction and sealing)
- Medical Devices and Instrumentation
- Small Electric Motors and Gearboxes
- Conveyor Systems in clean or washdown environments
- Agricultural Machinery components
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