6mm Bore Ball Bearing With 21mm Outer Diameter And 10mm Width Metric 6x21x10mm Steel Ball Bearing With Tire Precision Machined For Smooth Rotation And Reliable Load Support In Small Machines RC Models Hobby Gear And Compact Automation

Single 6x21x10mm bore bearing with tire unit
✔️ Bore 6mm, OD 21mm, tire width 10mm; steel ball bearing

This compact bearing is designed for small machinery and hobby projects, offering reliable shaft support with a tire outer for grip and wear resistance. It’s commonly used in RC models, compact conveyors, and light-duty robotics where space is limited and smooth rotation matters.

✅ 6 mm bore, fits a 6 mm shaft
✅ Outer diameter 21 mm
✅ Tire width 10 mm
✅ Steel ball bearing construction

💡 What is a bore bearing used for in small machines and hobby projects? - Supports rotating shafts in compact drive systems - Reduces friction for smoother operation - Great for RC cars, small conveyors, and light-duty automation - Works with compatible housings or tires for added protection