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The SF685 is a small radial ball bearing with a 5mm bore and 11mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 123 lbf and spins at speeds up to 40,500 RPM, making it suitable for high-speed applications.
With an open design and ABEC1 tolerance, it offers smooth operation while allowing easy lubrication. The stainless steel cage ensures reliable performance in temperatures ranging from -30°C to 110°C.
Its compact size (3mm width) and lightweight (1.33g) make it ideal for small devices like precision instruments or miniature motors. The flange design helps keep the bearing securely in place during operation.
Compliant with RoHS and REACH standards, this bearing is a practical choice for both industrial and hobbyist projects requiring a reliable, high-speed radial bearing.
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How Does SF685 Bearing Achieve High-Speed Performance?
SF685 Bearing is crafted with stainless steel rings and balls, ensuring smooth operation at speeds up to 40,500 rpm.
Its single-row design and precise radial clearance of 0.002mm to 0.013mm contribute to reduced friction and enhanced efficiency.
The stainless steel cage maintains ball alignment, promoting consistent performance under radial loads.
With a dynamic radial load capacity of 123 lbf, it suits applications requiring both speed and reliability.
Common Applications of SF685 Bearing
SF685 Bearing is widely used in small electric motors, such as those found in cooling fans or handheld gadgets, thanks to its compact size and high-speed capability. The stainless steel construction ensures it performs well in humid or corrosive environments.
In precision instruments like optical devices or small measuring tools, SF685 Bearing provides smooth rotation with minimal friction. Its open design allows for easy lubrication, extending service life in delicate applications.
For hobbyist projects like model trains or drones, SF685 Bearing offers reliable performance without adding unnecessary weight. The metric dimensions make it compatible with many DIY kits and replacement parts.
Where Is SF685 Bearing Used?
You’ll often spot SF685 Bearing in dental tools or lab equipment, where its small footprint and high RPM tolerance are ideal. The stainless steel materials also meet hygiene standards for medical use.
In consumer electronics like printers or cameras, SF685 Bearing ensures quiet operation and longevity. Its lightweight design helps maintain portability without compromising durability.
Built for Versatility: SF685 Bearing
SF685 Bearing works well in robotic joints or small automation systems, handling radial loads with ease. The ABEC1 tolerance strikes a balance between precision and affordability for general-purpose use.
For light-duty industrial sensors or control panels, SF685 Bearing’s low maintenance needs make it a sensible choice. The flanged outer ring simplifies installation in confined spaces.
Automotive vs Aerospace: Applications of SF685 Bearing
In automotive applications like dashboard instruments or throttle controls, SF685 Bearing delivers consistent performance. Its temperature range suits both interior and under-hood conditions.
For aerospace prototypes or lightweight mechanisms, SF685 Bearing’s minimal weight is a key advantage. The high-speed rating accommodates demanding rotational requirements.
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