SF6909
SF Series Stainless Steel Flanged 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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SF6909 Bearing Product Overview & Core Advantages
The SF6909 is a flanged ball bearing designed for compact installations requiring precise shaft location and radial load support. Constructed with stainless steel rings and a stainless steel cage, it offers excellent corrosion resistance and reliable performance in demanding environments. Its open design allows for custom lubrication strategies, while the integral flange simplifies mounting and enhances positional stability. This bearing is ideal for applications where space constraints, moderate speeds, and consistent radial load capacity are critical factors.
SF6909 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF6909 | Basic model number denoting a specific flanged ball bearing series with a 45mm bore. |
| Open (No Seal/Shield suffix) | No integral seals or shields. Requires external sealing or is suitable for clean environments where lubrication can be managed. |
| (Implied C0 clearance) | Standard radial internal clearance (0.002mm to 0.013mm) for general operating conditions. |
| (Implied ABEC-1) | Standard tolerance class, suitable for many industrial applications. |
SF6909 Bearing Structural Features & Performance Benefits
Flanged Design: The integrated flange (71mm outer diameter) provides positive axial location, simplifies housing design, and resists mounting misalignment, enhancing overall system rigidity.
Material Construction: The use of stainless steel for the rings, cage, and shield material ensures high corrosion resistance, making it suitable for humid, washdown, or mildly corrosive environments.
Radial Load Capacity: With a radial dynamic load rating of 285 lbf and a static load rating of 2191 lbf, this single row ball bearing provides reliable support for substantial radial forces in a compact form factor.
High-Speed Capability: Featuring a limiting speed of 8,700 rpm and a precision-ground chrome steel ball complement (15 balls of 6.747mm diameter), it ensures smooth operation and low vibration at moderate to high rotational speeds.
Flexible Lubrication: The open structure allows for the application of specialized lubricants tailored to specific operational needs, including high-temperature or food-grade greases, within its temperature range of -30° to 110°C.
SF6909 Bearing Typical Application Areas
- Food Processing & Packaging Machinery: Conveyor rollers, mixer shafts, and filling equipment where corrosion resistance is paramount.
- Medical Devices: Small motors, pumps, and precision instruments requiring reliable, clean-room compatible components.
- Office Automation Equipment: Printers, scanners, and copiers for paper feed and roller guidance mechanisms.
- Small Electric Motors & Gearboxes: Supporting rotor shafts in compact motor designs.
- General Industrial Machinery: Guide rollers, idler pulleys, and other applications needing a compact, flanged bearing solution.
