He ʻano maʻalahi ko nā huila huila cylindrical me ko lākou mau ʻōleʻa cylindrical i ka laina laina me nā ala heihei. Hāʻawi lākou i ka mana hoʻouka kiʻekiʻe ma lalo o nā ukana radial. ʻO ka haʻahaʻa haʻahaʻa ma waena o nā wili a me nā ʻaoʻao apo i kūpono kēia mau bearings no ka hoʻololi kiʻekiʻe.
