Umehluko phakathi kwe-12B chain kanye ne-12A chain

1. Amafomethi ahlukene

Umehluko phakathi kochungechunge lwe-12B kanye neketango le-12A ukuthi uchungechunge lwe-B lungolwenkosi futhi luhambisana nokucaciswa kwe-European (ikakhulukazi yaseBrithani) futhi ngokuvamile lusetshenziswa emazweni aseYurophu;uchungechunge A lusho imethrikhi futhi luhambisana nokucaciswa kosayizi wezindinganiso zamaketango aseMelika futhi ngokuvamile lusetshenziswa e-United States nase-Japan.kanye namanye amazwe.

2. Osayizi abahlukene

I-pitch yamaketanga amabili ingu-19.05MM, kanti amanye amasayizi ahlukile.Iyunithi yenani (MM):

Imingcele yeketanga le-12B: ububanzi be-roller ngu-12.07MM, ububanzi bangaphakathi besigaba sangaphakathi buyi-11.68MM, ububanzi be-pin shaft ngu-5.72MM, kanti ukushuba kwepuleti leketango kungu-1.88MM;
Imingcele yeketanga le-12A: ububanzi berola bungu-11.91MM, ububanzi bangaphakathi besigaba sangaphakathi bungu-12.57MM, ububanzi bephinikhodi bungu-5.94MM, kanti ukujiya kwepuleti leketango kungu-2.04MM.

3. Izidingo ezihlukile zokucaciswa

Amaketanga ochungechunge lwe-A anengxenye ethile kuma-roller namaphini, ubukhulu be-internal chain plate kanye ne-outer chain plate kuyalingana, futhi umphumela wamandla alinganayo wamandla amile utholakala ngokulungiswa okuhlukile.Kodwa-ke, asikho isilinganiso esisobala phakathi kosayizi oyinhloko nephimbo lezingxenye zochungechunge B.Ngaphandle kokucaciswa kwe-12B okungaphansi kochungechunge A, ezinye izicaciso zochungechunge B ziyefana nemikhiqizo yochungechunge A.