SF6904
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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SF6904 Bearing Product Overview & Core Advantages
The SF6904 is a metric flanged ball bearing designed for compact installations requiring precise radial load support. Constructed with a single row design and open seal type, it offers excellent performance in applications where space is limited but reliability is critical. Its stainless steel construction provides superior corrosion resistance, while the flanged outer ring facilitates easy mounting and axial location. This bearing is engineered to deliver high rotational accuracy and stable operation within its specified temperature range and speed limits.
SF6904 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF6904 | Basic bearing designation indicating specific dimensions and series |
| Flanged | Outer ring features an integral flange for simplified mounting and axial positioning |
| Open | No seals or shields, allowing for custom lubrication solutions |
SF6904 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to ABEC-1 tolerance class with C0 radial clearance (0.002mm to 0.013mm), ensuring consistent performance and smooth operation.
Superior Material Composition: Features stainless steel rings and cage combined with chrome steel balls, providing excellent corrosion resistance and durability in demanding environments.
Optimized Load Capacity: With a radial dynamic load rating of 1291 lbf and static load rating of 745 lbf, this bearing delivers reliable performance under significant radial loads.
High-Speed Capability: The limiting speed of 17,100 rpm is achieved through precision engineering and optimal ball quantity (14) and ball diameter (4.762 mm) configuration.
Compact Design Advantage: The flange outer diameter of 40 mm and compact width of 9 mm make it ideal for space-constrained applications while maintaining structural integrity.
SF6904 Bearing Typical Application Areas
- Small electric motors and miniature gearboxes
- Medical equipment and laboratory instruments
- Office automation devices including printers and scanners
- Robotics and automation systems requiring compact bearing solutions
- Food processing equipment where corrosion resistance is essential
- Precision mechanical assemblies in electronics manufacturing
