,
ʻO nā bearings e neʻe ma ka laina pololei ma ke ala pololei no nā bearings maʻamau.Hoʻohana ʻia ka laina laina no ka hoʻoholo ʻana i ke kūlana o ka neʻe ʻana o ka ʻāpana wili a me nā ʻāpana ʻē aʻe, e kākoʻo a alakaʻi paha i nā ʻāpana.ʻO ka hana nui o ka laina laina e kākoʻo i ke kino rotating mechanical e hōʻemi i ka coefficient friction o ka ukana mechanical i ke kaʻina hana o nā mea hana.