ʻO nā ʻāpana cylindrical nā mea koʻikoʻi i nā ʻōnaehana hoʻoili mana mechanical, kaulana no ko lākou pono, maʻalahi, a me ka versatility. Loaʻa kēia mau mea hana i nā niho cylindrical i hui pū ʻia e hoʻololi i ka neʻe a me ka mana ma waena o nā kumu like ʻole a i ʻole.
ʻO kekahi o nā pōmaikaʻi nui o nā mīkini cylindrical ʻo ko lākou hiki ke hoʻouna i ka mana me ka mālie a me ka mālie, e hoʻolilo iā lākou i mea kūpono no ka nui o nā noi, mai ka lawe ʻana i nā kaʻa a hiki i nā mīkini ʻenehana. Loaʻa iā lākou i nā ʻano hoʻonohonoho like ʻole, me ka spur gears, helical gears, a me ka pālua helical gears, hāʻawi kēlā me kēia i nā pono kūʻokoʻa e pili ana i nā koi noi.