外球面球軸(zhóu)承實際(jì)上(shàng)是深(shēn)溝球(qiú)軸承的一(yī)種變(biàn)型,特點是(shì)它的(de)外圈外徑(jìng)表面為球面可(kě)以配入軸承座相應的凹(āo)球面(miàn)内起(qǐ)到調心的(de)作用。主要用來(lái)承受以徑向負(fù)荷為主的徑向與軸(zhóu)向聯合負荷,一般不(bú)宜單(dān)獨承受軸向負(fù)荷,此種(zhǒng)軸(zhóu)承可(kě)以分(fèn)别安(ān)裝内(nèi)圈(帶全(quán)組(zǔ)滾子與保(bǎo)持器)和外圈(quān)。該種軸(zhóu)承軸(zhóu)向遊(yóu)隙的大小(xiǎo),對軸承能(néng)否正(zhèng)常工作關系很(hěn)大,當軸(zhóu)向遊隙(xì)過小時,溫(wēn)升較(jiào)高:軸向(xiàng)遊隙較(jiào)大時,軸承(chéng)容易(yì)損壞。故在安裝和運轉時要特(tè)别注意調(diào)整軸(zhóu)承的(de)軸向(xiàng)遊隙(xì),必要(yào)時可(kě)以預過盈安(ān)裝,以增(zēng)加軸(zhóu)承(chéng)的(de)剛。常用于(yú)采礦、冶金(jīn)、農業、化工(gōng)、輸送等機械上。

in fact, pillow block ball bearing is a variant of the deep groove ball bearing, which is characterized by the effect of the surface of the outer diameter of its outer ring as the spherical surface of the ball bearing the corresponding concave spherical surface of the bearing seat. it is mainly used to bear radial and axial joint loads based on radial load. it is not suitable for axial load alone. this kind of bearing can be installed in the inner ring (with all the rollers and maintainers) and the outer ring. the size of the axial clearance of this kind of bearing has a great relationship with the normal work of the bearing. when the axial clearance is too small, wen sheng is higher: when the axial clearance is large, the bearing is easily damaged. therefore, when installing and running, we should pay special attention to adjust the axial clearance of bearings, and install prestress when necessary, so as to increase the rigidity of bearings. it is often used in mining, metallurgy, agriculture, chemical industry, transportation and other machinery.