ʻO ka pahu pahu pahu cylindrical kahi ʻano o ka lawe ʻana me ka roller cylindrical, hiki ke halihali i ka ukana radial a me kekahi ukana axial.ʻO kona mau puʻupuʻu i loko a me waho, ʻo ia ka ili raceway, a ʻo ka huila e ʻōwili ma ka ʻili raceway e amo i ka ukana.He maʻalahi ke ʻano o nā bearings roller cylindrical a maikaʻi i ka lōʻihi.Hoʻohana pinepine ʻia lākou no ka rotation kiʻekiʻe a me nā ukana kaumaha, e like me nā huila huila a i ʻole nā mea nui o nā mīkini ʻenehana a me nā mea hana.Hiki ke hoʻokaʻawale ʻia nā bearings cylindrical roller i nā ʻano like ʻole e like me ka nui o ka nui, ka hoʻolālā a me nā hiʻohiʻona noiʻi, ʻo ka moʻo maʻamau:
1. Hoʻokahi lālani cylindrical roller bearings: NU, NJ, NUP, N, NF a me nā moʻo ʻē aʻe.
2. ʻO nā huila huila cylindrical lālani pālua: NN, NNU, NNF, NNCL a me nā moʻo ʻē aʻe.