Bearings suna ɗaya daga cikin muhimman abubuwan da ke cikin samfuran mota. Yanayi na musamman na aiki suna haifar da buƙatu masu yawa ga bearings da kuma man shafawa. Misali, yanayin zafi mai yawa, yanayin zafi mai ƙarancin zafi, canjin zafin jiki mai yawa, da muhalli tare da abubuwan gurɓatawa duk suna da yanayi na musamman waɗanda ke buƙatar zaɓar bearings da kyau. Wasu masana'antun bearings sun ƙirƙiri bearings na musamman waɗanda suka dace da waɗannan yanayi. Wannan muhimmin bayani ne da masu ƙira motoci dole ne su fahimta kuma su ƙware don hana rashin dogaro da injin da ke haifar da zaɓin bearings mara kyau.
An tsara bearings ɗin ƙwallon tsagi mai zurfi waɗanda suka dace da yanayin zafi mai girma da ƙasa kamar yadda aka tsara bearings ɗin ƙwallon tsagi mai zurfi. Waɗannan bearings an sanye su da ƙira mai ɗauke da gibin ɗaukar ƙwallo, wanda zai iya jure matsakaicin nauyin radial da nauyin axial a duka kwatance. Suna da babban fili na ciki kuma an sanya su da keji na musamman. Tsarin share bearings ɗin ƙwallon tsagi mai zurfi mai zafi ya ninka na C5 sau huɗu, yana hana bearings su makale yayin sanyaya da sauri. Ana kula da saman bearings da murfin ƙura da manganese phosphating don hana tsatsa da inganta aikin aiki. Ga bearings masu zafi da ƙananan zafin jiki tare da kejin ƙarfe da aka matse kuma babu hatimi, ana amfani da cakuda polydiol da graphite azaman mai shafawa, kuma suna iya aiki a cikin kewayon zafin jiki na -40°C zuwa 250°C. Duk da haka, lokacin da aka yi amfani da su a cikin yanayin zafi mai girma sama da 200°C, ya kamata a zaɓi man shafawa mai ƙarfi.
Bearings masu zafin jiki mai yawa tare da murfin ƙura a ɓangarorin biyu na iya hana wasu gurɓatattun abubuwa masu ƙarfi shiga. Waɗannan bearings an riga an cika su da man shafawa sau biyu fiye da bearings na yau da kullun, amma ba su dace da aikace-aikacen da ba sa juyawa ba. Don bearings da ake amfani da su a yanayin zafi mafi girma, ana amfani da tubalan graphite masu rarrabuwa azaman masu riƙe keji. Matsakaicin zafin aiki shine daga -150°C zuwa +350°C. Waɗannan tubalan graphite masu rarrabuwa suna raba ƙwallon kuma suna aiki kamar keji na yau da kullun, yayin da kuma suke aiki azaman man shafawa. Rufin ƙurar da ke ɓangarorin biyu na bearings na iya jagorantar tubalan graphite a ciki a axial kuma hana shigar da gurɓatattun abubuwa masu ƙarfi. Lokacin da bearings ke juyawa, ƙaramin adadin foda graphite daga tubalan graphite yana faɗuwa don shafa mai a hanyoyin tsere da ƙwallon bearings. Wani fa'idar wannan ƙira ita ce ba ta da mummunan tasiri ga muhalli, saboda babu iskar gas ko tururi mai cutarwa da ake fitarwa ko da a yanayin zafi mai tsanani.
Wannan bearing, wanda ya dace da yanayin zafi mai yawa da kuma saurin juyawa mai yawa, shine samfurin zamani a cikin jerin bearings masu zafi mai yawa. Yana da keɓaɓɓen keji mai siffar graphite conical, wanda ke magance ƙuntatawa da yawa da ake fuskanta a aikace-aikace a yanayin zafi mai yawa.
Lokacin Saƙo: Mayu-19-2025