Open 9x17x5 Miniature Ball Bearing Open Deep Groove Bearing 9mm x 17mm x 5mm Pre Lubricated With Grease 52100 Chrome Steel High Durability Inner Diameter 9mm Outer Diameter 17mm Width 5mm Small Precision Bearing

Single 689 open ball bearing 9x17x5 mm, chrome steel
✔️ 9x17x5 mm open deep groove, chrome steel, pre-lubed grease

This 689 open ball bearing is a compact, pre-lubed unit designed for small rotating assemblies. Open design aids cooling and inspection, making it a common choice in hobby robotics, RC gear, and compact machinery.

✅ Inner diameter: 9 mm
✅ Outer diameter: 17 mm
✅ Width: 5 mm
✅ Material: 52100 chrome alloy steel
✅ Lubrication: pre-lubed with grease
✅ Dynamic load rating: 1350 N
✅ Static load rating: 660 N
✅ Type: Open deep groove ball bearing
✅ Size: 9x17x5 mm

💡 What is a 689 open ball bearing used for in small machinery?

This handy option helps reduce friction and wear in compact setups, with easy inspection and cooling.

- Handy for hobby RC cars and small CNC or 3D printing projects
- Useful in lightweight linear guides and rotating assemblies
- Pre-lubed grease supports quick start-up and maintenance ease