10-Pack 689ZZ Ball Bearing 9x17x5mm - Shielded - Miniature

10-Pack 689ZZ Miniature Ball Bearings
✔️ Shielded - 9x17x5mm - Chrome Steel - Pre-Lubricated

This 10-pack of 689ZZ miniature ball bearings features durable chrome steel construction with double metal shields to keep dust and debris out. Pre-lubricated for smooth, high-speed operation, these are ideal for small motors, tools, and precision devices.

✅ Size: 9mm (ID) x 17mm (OD) x 5mm (Width)
✅ Material: Chrome steel for strength and long life
✅ Closures: Double metal shields (ZZ)
✅ Lubrication: Pre-greased and maintenance-free
✅ Dynamic load rating: 1,350 N
✅ Static load rating: 660 N
✅ Max speed (grease): 39,000 RPM
✅ Quantity: 10 bearings per pack
✅ Cross-references: NSK 689ZZ, KOYO W689ZZ, NMB L-1790ZZ

💡 What makes shielded miniature bearings ideal for tight applications?
Shielded bearings block out dirt and retain lubrication without the drag of rubber seals, making them perfect for compact, high-speed equipment like RC motors, fans, and tools.

Efficient, low-friction performance in a compact form - built for smooth operation in tight spaces.