Ua like ke kaulahao lawe me ke kaulahao hoʻoili. Ua hana pū ʻia ke kaulahao lawe pololei me kahi moʻo o nā bearings, i hoʻopaʻa ʻia e ka papa kaulahao me ke kāohi, a pololei loa ka pilina kūlana ma waena o kekahi.

Aia kēlā me kēia bearing i kahi pine a me kahi lima e wili ai nā wili o ke kaulahao. Hana ʻia ka pine a me ka lima i ka mālama ʻana i ka paʻakikī o ka ʻili, kahi e hiki ai i nā hui hinged ma lalo o ke kaomi kiʻekiʻe, a hiki ke kū i ke kaomi ukana i hoʻouna ʻia e nā wili a me ka hopena i ka wā o ka hoʻopili ʻana. Loaʻa i nā kaulahao conveyor o nā ikaika like ʻole kahi moʻo o nā pitch kaulahao like ʻole: pili ka pitch kaulahao i nā koi ikaika o nā niho sprocket a me nā koi paʻa o ka pā kaulahao a me ke kaulahao maʻamau. Inā pono, hiki ke hoʻoikaika ʻia. Hiki i ka lima ke ʻoi aku ma mua o ka pitch kaulahao i helu ʻia, akā pono e loaʻa kahi hakahaka i nā niho kia e wehe ai i ka lima.