These high-speed 685ZZ miniature ball bearings deliver reliable performance in a compact 5x11x5mm size. Crafted from durable carbon steel with metal shielding, these bearings are engineered to provide smooth, consistent operation while keeping debris out. The robust construction offers impressive load-bearing capabilities, making these bearings ideal for various precision applications and home hardware needs. Each bearing features double-sided metal shields that help maintain proper lubrication while preventing contaminant entry. This 5-piece set provides excellent value for projects requiring dependable rotary motion in space-constrained installations. The precision manufacturing ensures minimal friction and quiet operation, while the carbon steel composition delivers lasting durability under regular use. Perfect for both DIY enthusiasts and professional applications where reliable, small-scale bearings are essential.