SFR188
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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SFR188 Bearing Product Overview & Core Advantages
The SFR188 is a single row deep groove ball bearing designed for high-performance applications requiring precision and reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This inch-series bearing is characterized by its compact design with a flanged outer ring, which facilitates precise axial location and simplifies housing design. Its open seal type allows for versatile re-lubrication options, making it suitable for a wide operating temperature range from -86 to 230 °F. With an ABEC1 tolerance class, it provides dependable performance for general precision applications.
SFR188 Bearing Model Code Explained, Specifications & Naming Convention
The SFR188 model designation follows a standard coding system for inch-series bearings. Here is a breakdown of its key specifications:
- SFR: Denotes a specific series of flanged, inch-size ball bearings.
- 188: Indicates the specific bearing size within the SFR series.
- Construction: Single Row, Deep Groove
- Seal Type: Open (No shield or seal, allowing for re-lubrication)
- Ring Material: Stainless Steel
- Tolerance Class: ABEC1
- Internal Clearance: MC3 (Greater than normal clearance)
SFR188 Bearing Structural Features & Performance Benefits
The performance of the SFR188 is derived from its robust construction and material selection:
- Flanged Design: The integral flange on the outer ring provides easy and accurate mounting, prevents axial displacement, and can often eliminate the need for complex housing shoulders or retaining devices.
- All-Stainless-Steel Construction: The use of stainless steel for the rings, balls, and cage ensures superior corrosion resistance and makes the bearing suitable for harsh environments, including those requiring wash-downs or exposure to certain chemicals.
- Radial Load Capacity: Engineered to handle significant radial dynamic loads (310 lbf) and static loads (72 lbf), providing reliable support in various applications.
- MC3 Internal Clearance: The specified radial internal clearance is suited for applications where thermal expansion or shaft misalignment is a concern, helping to prevent binding and reduce operational noise.
- Versatile Lubrication: The open design allows for the initial application and subsequent replenishment of a wide range of lubricants, optimizing performance for specific speed and temperature conditions.
SFR188 Bearing Typical Application Areas
The SFR188 is a versatile component ideal for a range of compact and precision-driven systems, including:
- Small Precision Motors and stepper motors
- Medical and Dental Equipment (e.g., handheld tools, pumps)
- Food Processing and Packaging Machinery where corrosion resistance is critical
- Office Automation Equipment such as printers and scanners
- Instrumentation and Control Devices
- Various light-duty industrial machinery requiring a compact, flanged bearing solution
