623 Open Miniature Ball Bearing 3mm x 10mm x 4mm Deep Groove Chrome Steel 52100 Open Bearing For Precision Micro Machinery RC Models Drones And Hobbies Inner Diameter 3mm Outer Diameter 10mm Width 4mm

Compact 623 open ball bearing 3x10x4 in chrome steel
✔️ ID 3mm, OD 10mm, W 4mm, chrome steel bearing, 1 pc

This tiny, single-bearing 623 open ball bearing is designed for compact assemblies such as hobby machines, RC gear, and precision slides that require a slim chrome steel bearing.

✅ Inner diameter 3 mm
✅ Outer diameter 10 mm
✅ Width mm
✅ Material Chrome steel (52100)
✅ Dynamic load rating Cr 640 N
✅ Static load rating Cor 230 N
✅ Open bearing (no shields)
✅ Max speed grease 52,000 RPM; oil 63,000 RPM

💡 What is a small ball bearing used for in hobby machines and model builds? This handy guide helps with smart choices.

- small applications in hobby gear and model projects
- choosing inner/outer diameter, width, and load for reliability
- maintenance tips: lubrication, mounting, and clearance