Umahluko phakathi kwekhonkco le-12B kunye ne-12A chain

1. Iifomathi ezahlukeneyo

Umahluko phakathi kwekhonkco le-12B kunye nekhonkco le-12A kukuba uchungechunge lwe-B luyi-imperial kwaye luhambelana ne-European (ikakhulukazi yaseBritani) kwaye lusetyenziswa ngokubanzi kumazwe aseYurophu;uthotho A luthetha i-metric kwaye luhambelana neenkcukacha zobungakanani bemigangatho yekhonkco yaseMelika kwaye isetyenziswa ngokubanzi eMelika naseJapan.kunye namanye amazwe.

2. Ubungakanani obahlukeneyo

I-pitch yamatyathanga amabini yi-19.05MM, kwaye ezinye iisayizi ziyahluka.Iyunithi yexabiso (MM):

I-parameters ye-chain ye-12B: ububanzi be-roller yi-12.07MM, ububanzi bangaphakathi becandelo langaphakathi yi-11.68MM, ububanzi be-pin shaft yi-5.72MM, kunye nobukhulu beplate ye-chain yi-1.88MM;
I-12A iiparamitha zekhonkco: ububanzi be-roller yi-11.91MM, ububanzi bangaphakathi becandelo langaphakathi yi-12.57MM, ububanzi be-pin shaft yi-5.94MM, kunye nobukhulu beplate ye-chain yi-2.04MM.

3. Iimfuno ezahlukeneyo zokucaciswa

Imixokelelwane ye-A series inomlinganiselo othile kwii-roller kunye nezikhonkwane, ubukhulu beplate ye-chain yangaphakathi kunye ne-plate ye-chain yangaphandle iyalingana, kunye nefuthe elilinganayo lamandla okuqina okuzinzileyo kufumaneka ngohlengahlengiso oluhlukeneyo.Nangona kunjalo, akukho mlinganiso ocacileyo phakathi kobukhulu obuphambili kunye ne-pitch yecandelo le-B.Ngaphandle kwenkcazo ye-12B engaphantsi kochungechunge lwe-A, ezinye iinkcukacha ze-B series zifana neemveliso ze-A.