Mene ne bambanci tsakanin bearings na cylindrical da bearings na rollers?

 

Bearings na silinda

Bearings na silindasuna cikin bearings masu daidaito, kuma jagorar flange na bearings mai daidaita daidaito ya ƙunshi keji, na'urori masu juyawa da zoben shaft mai jagora, wanda za'a iya raba shi da wani zoben bearing kuma yana cikin bearing mai rabuwa. Wannan nau'in bearing ya fi dacewa a saka shi da kuma wargaza shi, musamman lokacin da ake buƙatar zoben ciki da na waje, shafts da housings su dace da tsangwama.

 

Waɗannan bearings suna da alaƙa ta layi da hanyoyin tsere. Ƙarfin kaya yana da girma, kuma galibi yana ɗauke da nauyin radial. Bearings guda ɗaya kawai masu flanges a cikin zoben ciki da na waje za su iya ɗaukar ƙaramin kaya na axial akai-akai ko babban kaya na axial mai katsewa; Idan aka kwatanta da sauran bearings masu girma iri ɗaya, wannan nau'in bearings yana da halaye na babban kaya, amo na ƙasa da babban gudu, kuma gogayya tsakanin abin birgima da flange na zobe ƙarami ne, kuma ya dace da juyawa mai sauri. Ya dace da amfani da duk nau'ikan injunan daidaitacce da injinan niƙa na haƙa. Duk da haka, shafts, abubuwan birgima da sauran sassan da suka dace da irin waɗannan bearings suna buƙatar a yi musu daidai injin.

 

Dangane da ko zoben yana da flange ko a'a, ana iya raba shi zuwa NU, NJ, NUP, N, NF da sauran bearings na birgima mai layi ɗaya, da kuma NNU, NN da sauran bearings na birgima mai layi biyu. Bearings tsari ne da za a iya raba shi da zobe na ciki da zobe na waje.

 

Bearings na silindaBa tare da flanges a cikin zoben ciki ko na waje ba, ana iya motsa su ta hanyar axial kuma ana iya amfani da su azaman bearings masu zaman kansu. Bearings masu silinda masu flanges biyu a gefe ɗaya na zoben ciki da na waje da flange guda ɗaya a ɗayan gefen ferule na iya jure wani matakin nauyin axial a gefe ɗaya. Gabaɗaya, ana amfani da kejin tambarin farantin ƙarfe, ko kuma kejin ƙarfe mai ƙarfi. Duk da haka, ana ƙirƙirar wasu keji ta amfani da polyamide.

 

Buɗaɗɗen kofin allurar nadi mai buɗewa

 

Bearings na naɗa allura

Bearings na naɗa allura bearings ne masu naɗa silinda, waɗanda suke siriri da tsayi idan aka kwatanta da diamita. Irin waɗannan naɗa ana kiransu da naɗa allura. Duk da ƙananan sassan giciye, bearings suna da ƙarfin kaya mai yawa, kuma bearings naɗa allura suna da naɗa siriri da dogaye (diamita naɗa D)≤5mm, L/D≥2.5, L shine tsawon abin naɗawa), don haka ƙirar radial ɗin ta yi ƙanƙanta, kuma diamita na ciki da ƙarfin ɗaukar nauyinsu iri ɗaya ne da na sauran nau'ikan bearings, tare da ƙaramin diamita na waje, wanda ya dace musamman ga tsarin tallafi tare da ƙarancin girman hawa radial.

 

Saboda haka, ana amfani da bearings na allura a lokutan da sararin samaniya ya takaita, don haka ana amfani da su sosai a cikin motoci, babura, da injunan yadi. Kuma zoben ciki na abin naɗa allura zaɓi ne, a taƙaice, idan tauri da rashin ƙarfi na abin naɗa sun cika buƙatun, ba za ku iya daidaita zoben ciki ba (sararin yana da iyaka), amma idan matakin injinan abin naɗa sandar ya yi ƙasa kaɗan, ko kuma ya yi laushi, kuna buƙatar daidaita zoben ciki a matsayin hanyar tsere.

 

Bambance-bambancen da ke tsakaninbearings na silinda da bearings na allurasune kamar haka:

 

1. Abin birgima na bear ɗin silinda mai naɗin silinda abin birgima ne mai tauri; Abubuwan birgima na bear ɗin mai naɗin allura abin birgima ne mai siffar allura;

 

2. Tsarin bearings na silinda ya fi girma fiye da bearings na biredi na allura;

 

3. Baya ga ƙarfin radial, na'urar jujjuyawar silinda kuma tana iya jure wa ƙarfin axial, yayin da abin ɗaga allurar juyawa ...

 

4. An raba bearings na silinda zuwa layuka ɗaya, layuka biyu da layuka da yawa, waɗanda ake amfani da su a wurare daban-daban da kuma lokatai;

 

5. Saurin aiki na bearings na silinda ya fi na bearings na allura girma;

 

6. Bearings na silinda galibi ana yin su ne da ƙarfe mai inganci da ƙarfe na musamman; Bearings na siraran bango na allura an buga su ne daga faranti na ƙarfe. 

 

Lokacin da za a yi amfani da shi

 

A tsarin injiniyanci, galibi ana fara tantance girman shaft ɗin, sannan a zaɓi shaft ɗin da ke birgima bisa ga girman shaft ɗin. Duk da haka, idan shaft ɗin ya iyakance a cikin alkiblar diamita na injin, ana zaɓar shaft ɗin birgima, shaft ɗin birgima ko shaft ɗin birgima na ƙarin haske da kuma shaft ɗin haske mai ƙarfi; Idan an takaita matsayin axial na shaft ɗin a cikin injin, ana samun kunkuntar ko ƙaramin jerin shaft ɗin birgima ko shaft ɗin birgima.

 

An yi amfani da na'urar juyawa ta allura da sassan keji na allurar radiyo, bearings na juyawa ta allurar zobe ta waje, bearings na juyawa ta allurar zobe mai ƙarfi, bearings na juyawa ta allurar radiyo ana amfani da su sosai a cikin tsarin watsawa, tsarin sitiyari, sandar haɗa injin babur na motoci da injunan gini, da sauransu, kuma sun dace da lokutan da ke da ƙaramin sarari da babban ƙarfin ɗaukar kaya. Bearings na juyawa ta allura suna da sirara da dogayen na'urori (tsawon na'urar juyawa ya ninka diamita sau 3 zuwa 10, kuma diamita gabaɗaya ba ta wuce 5mm ba), don haka tsarin radial ɗin yana da ƙanƙanta, kuma girman diamita na ciki da ƙarfin ɗaukar kaya iri ɗaya ne da na sauran nau'ikan bearings, kuma diamita na waje shine mafi ƙanƙanta, wanda ya dace musamman don sakamakon tallafi inda girman shigarwar radial ya iyakance.