SF608
SF 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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SF608 Bearing Product Overview & Core Advantages
The SF608 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance and is suitable for a wide operating temperature range from -30°C to 110°C. Its compact design, featuring a flanged outer ring for simplified mounting and alignment, makes it an ideal choice for applications demanding high reliability and consistent performance in challenging environments.
SF608 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SF608 | Basic Bearing Model | Denotes a single row deep groove ball bearing with an 8mm bore, 22mm OD, and 7mm width. |
| Open (Seal Type) | No Shield or Seal | Allows for high-speed operation and facilitates re-lubrication. Requires a clean operating environment. |
| MC3 | Radial Internal Clearance | Specifies a greater-than-normal clearance (0.002mm to 0.013mm), beneficial where thermal expansion is a concern. |
| ABEC1 | Tolerance Class | Indicates standard precision tolerances for runout and dimensions, suitable for a wide range of general applications. |
SF608 Bearing Structural Features & Performance Benefits
The SF608's performance is derived from its robust construction and precise engineering. The single row deep groove raceway is optimally designed to handle significant radial dynamic loads (567 lbf) and moderate axial loads in both directions. The integrated stainless steel cage ensures stable ball guidance and contributes to smooth operation at the limiting speed of 30,600 rpm. The flanged outer ring provides exceptional mounting rigidity and positional accuracy, simplifying assembly in housings. With a radial internal clearance of MC3, this bearing is well-suited for applications with potential thermal expansion, preventing premature failure due to excessive preload.
SF608 Bearing Typical Application Areas
- Small Electric Motors and Spindles
- Precision Instruments and Optical Devices
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., Printers, Scanners)
- Food Processing and Packaging Machinery (benefiting from stainless steel construction)
