Cycloid pin gear planetary reducer hei waahanga whakawhiti miihini nui me te iti o te rōrahi, te taumaha marama, nga ahuatanga pai o te tuku. Kia tika ai te whakaahua i te hanga me te whakarōpūtanga o te cycloid, ka whakauruhia e matou te porowhita ki roto i te rohe me te huri noa ki waho o tenei kaupapa. Ko te porowhita i roto i te rohe e tohu ana ki te awhe manawanui o te raina arc o roto, ko te porowhita ki waho kei waho o te waahi o te rohe whakamanawanui. E ai ki te wehewehenga o te rohe o roto me waho o te rohe, ko te epicycloid e whai ake nei: epicycloid: te hurihuri i roto i te porowhita turanga me te taha ki waho o te porohita porowhita me te taha o te porowhita turanga mo te roera parakore, ko te hurihuri i runga i te ara kua tohua kei waho o te cycloid. Te tapahi epicycloid: he okeoke ki te porowhita ki waho me te porowhita o te turanga porowhita te ahua epicycloid (He porowhita te turanga porowhita ki waho). Tapahia ki roto, ki waho ranei te hanga o te cycloid, te hurihuri me te okeoke ki waho i te waahi o te riu. Ko te epicycloid roa: he rereke ki te poto o te epicycloid, kua whakaritea etahi waahi mo te tapahi epicycloid tawahi ki waho i te okeoke; Mo nga tikanga o te tapahi o roto epicycloid kua whakaritea i roto i tetahi waahi i roto i te papa hurihuri. He poto o te epicycloid me te kaha huritao epicycloid epicycloid e mohiotia ana he roa. Amplitude o waho cycloid luffing degree coefficient of amplitude is used to describe, those amplitude coefficient or short length coefficient. Ko te whakarea kaha kaha epicycloid o waho kua tautuhia ko te roa o te rakau piu me te ōwehenga o te radius hurihuri. Ko te roanga o te rakau piu e tohu ana ki te rohe porotaka o roto, ki te porowhita ranei i tetahi waahi kua pumau ki waho, ka porotaka ake ki te tawhiti o te waenganui o te porowhita. Mo te tapahi i te epicycloid i roto, ko te whakarea kaha kaha, i tetahi atu taha, e whakaatuhia ana ko te radius okeoke me te ōwehenga o te roa o te rakau piu.
Ko te roopu HOPRIO he kaihanga ngaio o te kaiwhakahaere me nga motuka, i whakapumautia i te 2000. Te tari matua o te roopu i Changzhou City, Jiangsu Province.