Bearings na Naɗi Mai Layi Biyu
Siffofi
Bearings na nadi mai layi biyu:
Nau'in NN: zoben ciki yana da haƙarƙari, kuma zoben waje ba shi da haƙarƙari. Ana iya shigar da zoben waje da haɗin ciki daban-daban, wanda ba ya iyakance canjin axial na shaft ko gidan, kuma ba zai iya ɗaukar nauyin axial ba. Idan aka kwatanta da bearing na silinda guda ɗaya mai girman radial iri ɗaya, yana iya jure manyan nauyin radial. Tsarin yana da ƙanƙanta, nakasar da ke ƙarƙashin kaya ƙarami ne, kuma ya dace musamman don tallafawa sandar kayan aikin injin.
Rubuta NN…K:
Tsarin iri ɗaya ne da nau'in NN, amma ramin ciki na bearing ɗin an yi masa kauri, wanda ya dace da daidaita radial clearance na bearing ɗin kuma ya dace da haɗuwa da wargazawa. Ana amfani da wannan nau'in bearing ɗin galibi a babban shaft na kayan aikin injin kuma ana sanya shi a kan shaft mai kauri. Ana daidaita radial clearance ɗin ta hanyar matsewa na zoben ciki.
Nau'in NNU, NNU…K:
Zoben waje yana da haƙarƙari kuma zoben ciki ba shi da haƙarƙari. Akwai nau'ikan ramuka guda biyu na silinda da ramuka masu siffar konkoli. Ba ya iyakance canjin axial na shaft ko ginin kuma ba zai iya ɗaukar nauyin axial ba. Idan aka kwatanta da bearing na silinda mai siffar konkoli mai girman radial iri ɗaya, yana iya jure manyan lodin radial.
Nau'in NNCF:
Zoben ciki yana da haƙarƙari uku kuma zoben waje yana da haƙarƙari ɗaya don sanya shi a gefe ɗaya. An sanya zoben waje da zoben riƙewa a ɗayan gefen haƙarƙarin don riƙe abin ɗaurin a wuri ɗaya.
Nau'in NNCL:
Zoben ciki yana da haƙarƙari uku, zoben waje ba shi da haƙarƙari, kuma akwai zoben tsayawa a ɓangarorin biyu don zama abin ɗaurawa mara rabuwa.
NNCS:
Zoben ciki yana da haƙarƙari uku, zoben waje ba shi da haƙarƙari, kuma akwai zoben kullewa na tsakiya a tsakiyar zoben waje, wanda ke zama abin ɗaurewa mara rabuwa. Shaft da wurin ɗaukar kaya suna ba da damar yin wani motsi na axial kuma ana iya amfani da shi azaman abin ɗaurewa na ƙarshe.
Aikace-aikace
Irin waɗannan bearings galibi ana amfani da su a cikin sandunan kayan aikin injin, injunan konewa na ciki, injinan iskar gas, na'urorin rage zafi, injinan lodawa da sauke kaya da kuma injunan masana'antu daban-daban.
Girman da ke tsakanin:
Bearings na nadi mai layi biyu:
Girman diamita na ciki: 50mm ~ 1500mm
Girman diamita na waje: 80mm ~ 2300mm
Girman faɗin: 23mm ~ 800mm
Haƙuri: Daidaiton samfurin yana da matsakaicin daraja, matakin P6, matakin P5, kuma ana iya sarrafa samfuran matakin P4 idan mai amfani yana da buƙatu na musamman.
Radiation clearance
Samfurin da aka saba amfani da shi na bearing mai layi biyu mai siffar silinda yana da saitin izini 1, kuma bearings mai siffar silinda na iya samar da saitin izini 2 ko 3.
Ana kuma samun bearings masu tapered tare da saitin izini guda biyu.
Ana iya samar da bearings masu girman ko ƙarami fiye da ƙimar da aka saba bisa ga buƙatun mai amfani.
keji
Bearings na naɗawa masu layi biyu galibi suna amfani da kejin tagulla da aka yi da injina, kuma wani lokacin ana samun kejin nailan.
Lambar ƙarin:
D mai raba bearing.
Amfani da DR mai layi biyu na raba bearing guda biyu
E Canje-canje na ƙira na ciki, tsarin ƙarfafawa. (Girman hanyar tsere ya dace da ma'aunin ƙasa na yanzu (nau'in da aka inganta), diamita na abin naɗin,
Tsawon yana ƙaruwa idan aka kwatanta da nau'in da ba a ƙarfafa ba.)
FC...ZW mai layi huɗu na cylindrical bearing, zobe na ciki guda ɗaya, zobe na waje biyu tare da haƙarƙari biyu, layuka biyu na rollers suna kusa da juna.
Kekunan buga farantin karfe na J, ƙarin bambanci na lamba lokacin da aka canza kayan.
JA Kekin tambarin takardar ƙarfe, jagorar zoben waje.
JE phosphated untaxed steel stamping keji.
K taper bore bearing, taper 1:12.
Bearing ɗin ramin K30 mai kauri, mai kauri 1:30.
MA keji mai tagulla, jagorar zoben waje.
Karamar ƙaramar tagulla ta MB, an shiryar da zoben ciki.
Akwai ramuka masu kama da juna a kan zoben waje na bearing na N.
NB Ƙunƙarar zobe ta ciki.
NB1 kunkuntar zobe ta ciki, gefe ɗaya kunkuntar.
NC kunkuntar zobe na waje.
Bearings na NR suna da ramukan snap da zoben snap a kan zoben waje.
Zoben waje mai ɗauke da N1 yana da wurin da za a iya gano shi.
Zoben waje mai ɗaukar nauyin N2 yana da ramuka biyu ko fiye na matsayi mai daidaitawa.
Q Keke mai tagulla mai ƙarfi tare da ƙarin lambobi don kayan aiki daban-daban.
/Haɗin QR na bearings guda huɗu na silinda, nauyin radial ɗin yana rarraba daidai gwargwado
Zoben waje na bearing R yana da haƙarƙari mai tsayawa (zoben waje na flange).
-RS mai ɗauke da hatimin roba na kwarangwal a gefe ɗaya
Bearings na 2RS tare da hatimin RS a ɓangarorin biyu.
-Bear na RSZ yana da hatimin roba na kwarangwal (nau'in lamba) a gefe ɗaya da kuma murfin ƙura a ɗayan gefen.
-Bearing na RZ yana da hatimin roba na kwarangwal a gefe ɗaya (nau'in da ba a taɓa shi ba).
-2RZ Bearings tare da hatimin RZ a ɓangarorin biyu.
Bearings na VB Shaker.
Bearing na ciki mai faɗi WB (faɗin gefe biyu).
Faɗin zoben ciki na WB1 (faɗin gefe ɗaya).
Faɗin zoben waje mai faɗin WC.
Na'urar riƙe zobe mai faɗi X mai cikakken cikawa mai kama da silinda mai naɗa bearing.
Diamita na waje na X1 ba daidaitacce bane.
Faɗin X2 (tsawo) ba daidaitacce bane.
Diamita na waje X3, faɗi (tsawo) ba daidaitacce ba (diamita na ciki na yau da kullun).
-Z bearing yana da murfin ƙura a gefe ɗaya.
-2Z bearing tare da murfin ƙura a ɓangarorin biyu
