Why is there an opening on the joint bearing?
Must again, because the joint bearings without steel ball, the inner ring is a convex arc, the outer ring is a concave arc surface, and between the installation can only open a mouth, in order to install the inner ring
Must again, because the joint bearings without steel ball, the inner ring is a convex arc, the outer ring is a concave arc surface, and between the installation can only open a mouth, in order to install the inner ring
Must again, because the joint bearings without steel ball, the inner ring is a convex arc, the outer ring is a concave arc surface, and between the installation can only open a mouth, in order to install the inner ring
