Shackles sune membobi na ƙarfe na annular da za'a iya cirewa waɗanda ake amfani da su don haɗa madaukai na ido na igiya iri-iri, hanyoyin haɗin sarƙoƙi da sauran rigging.Daurin ya ƙunshi sassa biyu: jiki da giciye.Wasu kusoshi a kwance suna da zaren, wasu suna da fil, kuma akwai nau'ikan sarƙa guda biyu na yau da kullun da sarƙaƙƙiya.Sau da yawa ana kiran sarƙoƙi bisa ga sassan da ake amfani da su, kamar ƙuƙumman anga da ake amfani da su akan sandar anga;sarkar anga da aka yi amfani da shi akan sarkar anga;daurin kan igiya da aka yi amfani da shi a kan igiya.[3]
ƙugiya kayan aiki ne da ake amfani da shi don rataye kaya ko kayan aiki kuma an yi shi da ƙarfe.An raba ƙugiya zuwa sassa uku: ƙugiya mai ƙugiya, ƙugiya ta baya da tip ƙugiya.
Dangane da jagorancin zoben ido na sama na ƙugiya, an raba shi zuwa ƙugiya ta gaba da ƙugiya ta gefe.Ƙaƙwalwar ƙugiya ta gaba tana daidai da jirgin saman zoben ido na ƙugiya, kuma ƙugiya tip na ƙugiya na gefe yana kan jirgin sama ɗaya da zoben ido na sama na ƙugiya..Ƙunƙuman kaya na yau da kullun suna amfani da ƙugiya mai fashe.
Kariya don amfani da ƙugiya: Lokacin amfani da ƙugiya, kiyaye ƙarfin a tsakiyar ƙugiya baya don kauce wa karya ƙugiya;Ƙarfin ƙugiya ya fi na ƙugiya na diamita guda ɗaya, kuma ya kamata a yi amfani da shi maimakon lokacin rataye abubuwa masu nauyi.Shackle don kauce wa mikewa da karya ƙugiya.[3]
Igiyar sarkar sarkar ce da aka hada da babu kayan haɗin kai.Ana amfani da shi sau da yawa akan jiragen ruwa azaman sarƙoƙin tudu, gajerun sarƙoƙi don ɗaga kaya, sarƙoƙi masu nauyi, da daidaita hanyoyin haɗin yanar gizo don aminci.Ana kuma amfani da shi don ja da ɗaure.Girman kebul ɗin sarkar yana bayyana cikin ma'aunin diamita na hanyar haɗin sarkar a cikin millimeters (mm).Ana iya ƙididdige nauyinsa daga nauyin kowane mita na tsayi.
Lokacin amfani da kebul na sarkar, yakamata a gyara zoben sarkar da farko don gujewa karfin gefe, kuma yakamata a guje wa karfi kwatsam don hana igiyar sarkar karye.Ya kamata a duba sarƙoƙi kuma a kiyaye akai-akai don kula da kyakkyawan yanayin fasaha.Sashin lamba tsakanin zoben sarkar da zoben sarkar, zoben sarkar da sarkar yana da sauƙin sawa da tsatsa.Kula da matakin lalacewa da tsatsa.Idan ya wuce 1/10 na ainihin diamita, ba za a iya amfani da shi ba.Hakanan ya kamata ku kula don bincika ko sarkar ta lalace ko a'a don tsagewa.Lokacin dubawa, ya kamata ka ba kawai duba daga bayyanar ba, amma yi amfani da guduma don buga hanyoyin haɗin sarkar ɗaya bayan ɗaya don ganin ko sautin yana da ƙima da ƙarfi.
Don kawar da tsatsa na igiyar sarkar, ya kamata a yi amfani da hanyar tasirin wuta.Fadada zoben sarkar bayan dumama na iya sanya tsatsa ta karye, sannan a buga zoben sarkar da juna don kawar da tsatsa gaba daya, kuma a lokaci guda kuma, hakan na iya kawar da tsatsa a kan zoben sarkar.Sarkar igiyar bayan cire tsatsa ya kamata a shafa mai kuma a kiyaye shi don hana tsatsa da rage lalata.
