The inner hole of the outer spherical ball bearing is the taper hole with 1:12 taper, which can be installed directly on the taper shaft, or with the help of the fixed bushing installed on the axleless optical shaft, and can adjust the bearing clearance.
It is a kind of bearing unit which combines rolling bearing and bearing pedestal. Most of the rolling bearing is the bearing center of the outer ring of the outer diameter of the sphere, and with the spherical inner hole of the bearing housing installed together, the structural form is diverse, universal and good interchangeability.