外球面球轴承实际上是深沟球轴承的一种变型,特点是它的外圈外径表面为球面可以配入轴承座相应的凹球面内起到调心的作用。主要用来承受以径向负荷为主的径向与轴向联合负荷,一般不宜单独承受轴向负荷,此种轴承可以分别安装内圈(带全组滚子与保持器)和外圈。该种轴承轴向游隙的大小,对轴承能否正常工作关系很大,当轴向游隙过小时,温升较高:轴向游隙较大时,轴承容易损坏。故在安装和运转时要特别注意调整轴承的轴向游隙,必要时可以预过盈安装,以增加轴承的刚。常用于采矿、冶金、农业、化工、输送等机械上。

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.