Ndi pakati pomwe pali bearing, msewu wakunja wozungulira wopangidwa mozungulira ungathe kudzipanga kukhala wokhazikika. Zinthu zawo zozungulira zimalumikizana molunjika ndi msewu wamkati ndi mphete yakunja. Mabearing amatha kunyamula katundu wambiri wa radial, woyenera makina olemera omwe amagwiritsidwa ntchito mu migodi, zitsulo, kupanga mapepala ndi kuphunzitsa, ndi zina zotero.
