10-Pack 1x3x1mm Mini Ball Bearing for Spinning Rings & Jewelry

S681 Stainless Steel Mini Ball Bearings - 10 Pack
✔️ 1mm x 3mm x 1mm - Open Type - Ideal for Jewelry & Micro Applications

This 10-pack of S681 stainless steel ball bearings features a compact 1mm x 3mm x 1mm size and a full complement (no cage) design. Perfect for spinning rings, jewelry, and other miniature precision applications, these bearings offer ultra-smooth performance and are built for durability in small-scale systems.

✅ Size: 1mm inner x 3mm outer x 1mm width
✅ Type: Deep groove ball bearing (open)
✅ Material: Stainless steel
✅ Design: Full complement (no cage)
✅ Dynamic load rating: 100 N
✅ Static load rating: 30 N
✅ Max speed (grease): 130,000 RPM
✅ Max speed (oil): 150,000 RPM
✅ Quantity: 10 bearings
✅ Equivalent to: 681, L-310
✅ Common use: Spinning rings, jewelry, hobby builds

💡 Why use micro ball bearings in jewelry?
Micro bearings provide smooth, silent rotation in small components like spinning rings or fidget jewelry. They’re also corrosion-resistant and designed to fit in tight spaces without sacrificing movement.

Tiny in size but built for motion - perfect for high-speed rotation in delicate, precise designs.