SFR156 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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SFR156 2rs Bearing Product Overview & Core Advantages
The SFR156 2RS is a sealed single row deep groove ball bearing designed for reliable performance in compact, precision applications. Manufactured entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its primary advantage lies in its integrated Nitrile rubber seals (2RS), which effectively retain lubricant and exclude contaminants, making it suitable for applications requiring low maintenance and long service life. This bearing is engineered to handle primarily radial loads and is capable of operating within a wide temperature range, making it a versatile and durable solution for demanding environments.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SFR156 | Basic bearing designation and size code. | Defines the core dimensions: 0.1875" bore, 0.3125" OD. |
| 2RS | Contact seals on both sides. | Provides superior protection against contamination and grease leakage compared to non-contact shields. |
SFR156 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Quality Construction: The deep groove geometry is optimized for radial load capacity. Combined with a stainless steel cage and precision-ground components, it ensures smooth, quiet, and reliable operation.
- Superior Sealing & Contamination Resistance: The Nitrile rubber contact seals (2RS) are highly effective at keeping lubricant in and contaminants such as dust and moisture out. This significantly enhances bearing life in harsh or unclean environments.
- Corrosion Resistance & Wide Temperature Range: The all-stainless-steel construction allows the bearing to perform reliably in corrosive atmospheres and across a broad temperature range from -86 to 230 °F.
- ABEC1 Precision: Manufactured to ABEC1 tolerance class, this bearing provides a high degree of running accuracy for smooth operation in a wide array of general-purpose applications.
SFR156 2rs Bearing Typical Application Areas
The SFR156 2RS is ideally suited for small, precision mechanisms requiring reliable, maintenance-free operation. Common applications include:
- Small electric motors and gearmotors
- Medical and dental instruments
- Precision optical devices and encoders
- Food processing equipment (where corrosion resistance is key)
- Office automation equipment (printers, scanners)
- Small pumps and fans
