SFR3 2rs
SFR Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SFR3 2rs Bearing Product Overview & Core Advantages
The SFR3 2RS is a single row deep groove ball bearing designed for exceptional performance in compact, precision applications. This sealed bearing is constructed entirely from stainless steel, offering excellent corrosion resistance. Its primary advantage is the integration of nitrile rubber seals (2RS) on both sides, providing superior protection against contaminants and retaining lubricant, making it ideal for applications demanding high reliability and low maintenance. Engineered to handle primarily radial loads with a dynamic load rating of 224 lbf, it is a robust and durable solution for a wide operating temperature range.
Model Code In-Depth Analysis
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| SFR3 | Standard bearing series designation with specific inch dimensions. | Defines the bearing size and series for interchangeability. |
| 2RS | Contact seals on both sides made of Nitrile Rubber (NBR). | Provides excellent sealing performance against dust and moisture, retains lubricant effectively for long service life. |
SFR3 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: Optimized for high-capacity radial loads, ensuring smooth operation and extended service life.
- Full-Complement Stainless Steel Construction: The rings, balls, and cage are all made from stainless steel, providing superior corrosion resistance and durability in harsh environments.
- Integrated Contact Seals (2RS): The nitrile rubber seals make direct contact with the inner ring, creating an effective barrier. This design significantly enhances contamination exclusion, protecting the bearing's interior and preserving lubricant integrity.
- Precision Engineering (ABEC1): Manufactured to ABEC1 tolerance class, ensuring consistent quality, reliable performance, and smooth running for a wide range of applications.
- Optimized Internal Clearance (MC3): Features a C3 radial internal clearance (0.00008" to 0.0005"), which is slightly larger than normal. This is advantageous for applications with anticipated thermal expansion or where interference fits are used, preventing premature failure due to binding.
SFR3 2rs Bearing Typical Application Areas
This versatile and robust sealed ball bearing is ideally suited for:
- Food and Beverage Processing Equipment (due to stainless steel construction and sealing)
- Medical and Dental Devices
- Small Precision Motors and Gearboxes
- Conveyor System Idlers and Rollers
- Agricultural Machinery (for components exposed to weather and washdown)
- Instrumentation and Control Devices
