689ZZ Bearing 9x17x5mm - Shielded - Miniature

689ZZ Shielded Ball Bearing
✔️ Chrome Steel, Double Shielded, 9x17x5mm

The 689ZZ is a compact deep groove ball bearing made from durable 52100 chrome steel and fitted with double metal shields to block out dust and debris. Pre-lubricated with grease and built for high-speed performance, it’s ideal for small motors, tools, drones, and other compact applications. Sold as one bearing.

✅ Inner diameter (ID): 9mm
✅ Outer diameter (OD): 17mm
✅ Width: 5mm
✅ Material: 52100 chrome steel
✅ Closures: Double metal shields (ZZ)
✅ Lubrication: Pre-greased
✅ Dynamic load rating: 1,350 N
✅ Static load rating: 660 N
✅ Max speed (grease): 39,000 RPM
✅ Pack size: One bearing

💡 Why are double shielded bearings like 689ZZ used in compact equipment?
They deliver high-speed rotation while staying sealed and low maintenance.

• Double shields keep out dirt while retaining lubricant

• Ideal for RC vehicles, electric tools, and precision gear

• Chrome steel resists wear and supports consistent performance

• Fits tight spaces without compromising durability

Grab this reliable little bearing and keep your compact project spinning fast and clean!