An rarraba ta hanyar hanyar kulle zobe ta ciki (manyan jeri uku)
Jerin UC: don injunan noma, fanka, kayan jigilar kaya, injunan abinci, da sauransu, a cikin yanayi mai matsakaicin gudu da kwanciyar hankali
Jerin UEL/UE: ana amfani da shi sosai a cikin injunan yadi, injunan marufi, da sauransu, don kayan aiki masu matsakaicin gudu waɗanda ke buƙatar wasu iyawar daidaitawa.
Jerin Burtaniya: ya dace da kayan aiki masu saurin juyawa, nauyi mai nauyi, ko waɗanda ke buƙatar wargajewa da haɗawa akai-akai, kamar wasu injunan gini da kayan haƙa ma'adinai. An rarraba su ta hanyar siffar gidan ɗaukar kaya (nau'ikan gidaje gama gari) Gidan ɗaukar kaya shine "interface" don shigarwa, kuma siffofi daban-daban suna ƙayyade hanyar shigarwa da sararin da ake shaƙatawa. Ma'anonin haruffa gama gari a cikin lambobin nau'in gidaje sune: P (tsaye), F (murabba'i), FL (rhombic), T (slider), C (circular), da sauransu.
Ana amfani da kayan ƙarfe na siminti don yin siminti gabaɗaya, tare da ƙarfi da tauri mai yawa, kuma shine nau'in da aka fi amfani da shi.
Gidaje a tsaye: nau'in da aka fi amfani da shi. Lambobi kamar UCP, UCFP, sun dace da wuraren kayan aiki na yau da kullun.
Gidaje mai murabba'i: lambarHukumar UCF, tare da saman shigarwa mai murabba'i, yawanci yana da ramukan shigarwa guda 4, kuma yana da ƙaramin tsari.
Gidaje masu siffar rhombic: lambar UCFL, tare da saman shigarwa mai siffar rhombic, wanda ya dace da amfani a cikin yanayi masu ƙarancin sarari ko inda ake buƙatar gyara gefe.
Gidan zamiya: lambar UCT, tare da gidan ɗaukar bearing wanda zai iya zamewa a cikin ramin, ya dace da yanayi inda ake buƙatar daidaita matsin lamba na bel da sarƙoƙi.
Gida mai zagaye: lambar UCC, mai siffar zagaye, wacce ake amfani da ita sau da yawa akan bututu da kayan aikin silinda.
Gidaje masu tsayi a tsaye (UCPH): tare da tsayin tsakiya sama da na yau da kullun a tsaye, wanda ya dace da tsayin shigarwa na musamman.
Gidaje Masu Ragewa/Rataye (UCHA/UCB): don shigar da dakatarwa, wanda ya dace da watsawa a saman ko tsarin injina na musamman.
Gidaje masu matsin lamba: kamar PF, PFL, PFT, waɗanda aka yi ta hanyar buga faranti na ƙarfe, tare da ƙarancin farashi da nauyi mai sauƙi, waɗanda galibi ana amfani da su don kayan aiki marasa mahimmanci waɗanda ba su da nauyi mai yawa.
Lura: Ana sanya wa ɗayan na'urar ɗaukar bearing suna da "lambar ɗaukar bearing + lambar nau'in gida". Misali, UCP205, yana wakiltar bearing na ciki na UC205 kuma an sanya shi a cikin gida mai tsaye (P).
Don zaɓar mafi kyawun bearing, ana ba da shawarar bin waɗannan matakan:
Bayyana yanayin aiki: ƙayyade girman kaya (radial/axial), kewayon gudu, zafin aiki, da muhalli (kamar ƙura, danshi, da kuma lalata).
Ƙayyade hanyar kullewa: dangane da ko alkiblar juyawar shaft ɗin ta kasance mai daidaito, matakin gudu, da kuma yawan wargajewar, zaɓi daga jerin UC, UEL, da UK.
Zaɓi fom ɗin gidaje: bisa ga sararin shigarwa, matsayinsa, da hanyar haɗi da kayan aikin suka bayar, ƙayyade nau'in gidaje da ya dace.
Tabbatar da girman shigarwa: mayar da hankali kan duba mahimman ma'auni kamar diamita na shaft, tsayin tsakiya, da tazara tsakanin ramukan shigarwa don tabbatar da dacewa da ƙirar da ke akwai.
Yi la'akari da sauƙin kulawa: fifita zaɓar bearings tare da tashoshin mai da ingantaccen aikin rufewa don sauƙaƙe kulawa daga baya da tsawaita rayuwar sabis.