This type of bearings is separable,which can only carry axial load.The

single direction bearings of them can only carry axial load in one

direction,while the double can carry alternating axial load in either

direction.Before using they have to be preloaded.The thrust ball

bearings are used in lathe centers,automobile clutches,redu-cers and so

on.The double direction angular contact thrust ball bearings are

suitable for machine tool spindles,while the single are used to support

ball screws.