8mm Inner Diameter 16mm Outer Diameter 5mm Width 688-2RS Deep Groove Ball Bearings Double Sealed Chrome Steel ABEC 1 Z2 Low Noise 474N Static Load Great For DIY Projects Pack Of 20

8x16x5mm 688-2RS Chrome Steel Deep Groove Bearings, 20 Pack
✔️ ID 8mm, OD 16mm, width 5mm; double-sealed chrome steel ABEC1

These bearings are compact, sealed, and built for smooth rotation in light-duty machinery, robotics tinkering, and hobby projects. They’re ideal for DIY runners, pulleys, and small axles where precise clearance and quiet operation matter.

✅ 688-2RS double-sealed on both sides to retain lubricant
✅ Chrome steel (GCr15) for durability and load resistance
✅ ABEC 1(P0) tolerance for smooth, low-noise performance
✅ Z2 low-noise rating for general-use applications
✅ Static load 474 N; dynamic load 1064 N ratings
✅ Pack size: 20 bearings in this set

💡 What is a sealed ball bearing used for in small mechanical projects and hobby machines?
It's handy for compact DIY gear trains and machines.
- sealed bearings for small DIY projects
- low friction with precise tolerance ABEC 1
- protects lubricant and keeps contaminants out
- supports light to moderate radial loads