Insert bearing actually is one deformation of deep groove ball bearing , Character of it is the outer

diameter surface of the outer ring come to be spherical type , it have aligning function as the concave

spherical can be fixed with block , although it's basic feature is the the same as deep groove ball bearing ,

but as this type of bearings are mainly used on rough machines , installing orientation is not very accurate ,

centering between shaft and bore is bad or in case of long shaft but big bending , and the precision of

the bearing is not high , structure of some bearings are much rough , so the actual feature of this

bearing is not so good as deep groove ball bearing in same specification .