Loading

MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now

Report as inappropriate

Actually, Shielded bearings with light oil would spin just as free. There is no contact between the inner race of the bearing and the shield.
The shield will act as a dust cover and help keep debris out of the bearings.