ʻO nā hua laka paʻa pololei ke lawe nei i nā mea hoʻohana no nā kaʻa uila. Hoʻohana ʻia lākou no ka hoʻokō ʻana i kahi preload axial i wehewehe ʻia i nā bearings pōpō pili axial no nā kaʻa uila a me nā bearings axial/radial roller no nā kaʻa uila. Hoʻohana pū ʻia nā nati laka pololei i nā noi ʻē aʻe kahi e kākoʻo ʻia ai nā ikaika axial kiʻekiʻe a koi ʻia ke kiʻekiʻe axial holo pololei a me ka rigidity.