外球面球軸承實際上是深溝球軸承的一種變型,特點是它的外圈外徑表面為球面可以配入軸承座相應的凹球面內起到調心的作用。主要用來承受以徑向負荷為主的徑向與軸向聯合負荷,一般不宜單獨承受軸向負荷,此種軸承可以分別安裝內圈(帶全組滾子與保持器)和外圈。該種軸承軸向游隙的大小,對軸承能否正常工作關系很大,當軸向游隙過小時,溫升較高:軸向游隙較大時,軸承容易損壞。故在安裝和運轉時要特別注意調整軸承的軸向游隙,必要時可以預過盈安裝,以增加軸承的剛。常用于采礦、冶金、農業、化工、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.