Ka'idar aiki ta birki galibi ta samo asali ne daga gogayya, amfani da faifan birki da faifan birki (ganga) da tayoyi da gogayya ta ƙasa, makamashin motsi na abin hawa zai koma makamashin zafi bayan gogayya, motar za ta tsaya. Tsarin birki mai kyau da inganci dole ne ya samar da ƙarfin birki mai karko, isasshe kuma mai sarrafawa, kuma yana da ingantaccen ikon watsawa da watsa zafi don tabbatar da cewa ƙarfin da direban ke amfani da shi daga fedar birki za a iya watsa shi gaba ɗaya da inganci zuwa babban famfo da ƙananan famfo, da kuma guje wa gazawar hydraulic da ruɓewar birki da zafi mai yawa ke haifarwa. Akwai birkunan diski da birkunan drum, amma ban da fa'idar farashi, birkunan drum ba su da inganci fiye da birkunan diski.
gogayya
"Girman kai" yana nufin juriyar motsi tsakanin saman hulɗar abubuwa biyu a cikin motsi mai alaƙa. Girman ƙarfin gogayya (F) yana daidai da samfurin ma'aunin gogayya (μ) da matsin lamba mai kyau (N) a tsaye akan saman ƙarfin gogayya, wanda dabarar zahiri ta bayyana: F=μN. Ga tsarin birki: (μ) yana nufin ma'aunin gogayya tsakanin ma'aunin birki da faifan birki, kuma N shine Ƙarfin Feda da piston caliper caliper ke yi akan ma'aunin birki. Girman ma'aunin gogayya da aka samar da shi, mafi girman gogayya, amma ma'aunin gogayya tsakanin ma'aunin birki da faifan zai canza saboda zafi mai yawa da gogayya ke samarwa, wato, ana canza ma'aunin gogayya (μ) tare da zafin jiki, kowane nau'in ma'aunin birki saboda kayan aiki daban-daban da lanƙwasa ma'aunin gogayya daban-daban, don haka ma'aunin birki daban-daban zai sami yanayin zafin aiki mafi kyau, Kuma kewayon zafin aiki mai dacewa, wannan shine dole ne kowa ya sani lokacin siyan ma'aunin birki.
Canja wurin ƙarfin birki
Ƙarfin da piston caliper na birki ke yi a kan faifan birki ana kiransa da Ƙarfin Pedal. Bayan ƙarfin direban da ke taka fedar birki ya ƙaru ta hanyar lever na tsarin pedal, ƙarfin yana ƙaruwa ta hanyar ƙarfin injin ...
Ana samun matsin lamba ta hanyar raba ƙarfin da aka yi amfani da shi ta hanyar yankin da aka matsa. Idan matsin ya yi daidai, za mu iya cimma tasirin ƙara ƙarfin ta hanyar canza rabon yankin da aka yi amfani da shi da kuma yankin da aka matsa (P1=F1/A1=F2/A2=P2). Ga tsarin birki, rabon jimlar famfo zuwa matsin ƙasa shine rabon yankin piston na jimlar famfo zuwa yankin piston na ƙaramin famfo.
