ʻO nā bearings huila pahu lālani hoʻokahi me ka hale paʻa i loko o nā huila cylindrical i hoʻopaʻa ʻia ma waena o kahi apo paʻa waho a me loko. ʻO kēia mau bearings kahi kiʻekiʻe o ka rigidity, hiki ke kākoʻo i nā ukana radial kaumaha a kūpono i nā wikiwiki kiʻekiʻe.
ʻO ke apo o waho o ka NJ cylindrical bearing he ʻelua iwi ʻaoʻao paʻa, ʻoiai ʻo ke apo o loko o ka bearing cylindrical he hoʻokahi iwi ʻaoʻao paʻa. ʻO kēia ke ʻano o ka NJ cylindrical bearing hiki ke axially loaʻa i ka lāʻau ma kahi ʻaoʻao.
