ʻO kahi ʻāpana i hoʻohana ʻia e hoʻonui i ke kaomi aila a hōʻoia i kahi nui o ka aila, e koi ana i ka aila i kēlā me kēia ʻili friction. Hoʻohana nui ʻia ke ʻano gear a me ka pamu aila ʻano rotor i nā mīkini kuni kūloko. Loaʻa i ka pamu aila ʻano gear nā pono o ke ʻano maʻalahi, ka hana maʻalahi, ka hana hilinaʻi, ke ola lawelawe lōʻihi, ke kaomi aila pamu kiʻekiʻe, hoʻohana nui ʻia ka pamu rotor rotor he paʻakikī ke ʻano rotor, kaomi metallurgy pauka multi-purpose. Loaʻa i kēia pamu nā pono like o ka pamu gear, akā ʻo ke ʻano compact, ka nui liʻiliʻi
Hana mālie, walaʻau haʻahaʻa. Hoʻokahi wale nō niho o ka pamu rotor cycloid i loko a me waho o ka rotor, i ka wā e neʻe ai lākou, he liʻiliʻi ka wikiwiki o ka ʻili niho, e neʻe mau ana ke kiko meshing ma ke ʻano o ka niho rotor kūloko a me waho, no laila, ʻaʻahu liʻiliʻi nā ʻili niho rotor ʻelua kekahi i kekahi. No ka mea he nui ke kihi envelope o ke keʻena omo aila a me ke keʻena hoʻokuʻu aila, kokoke i 145°, ua lawa ka manawa omo aila a me ka hoʻokuʻu aila, no laila, paʻa ke kahe o ka aila, paʻa ka neʻe ʻana, a haʻahaʻa loa ka walaʻau ma mua o ka pamu kia.
