Ball bearing under way force status classification

Single push thrust bearings are mounted on the ends and ball screw preload . Can improve the axial stiffness of the ball bearing screw ; pre-stretching resettlement , preload large, so screw things only suffer tension. But the essentials of the screw placement is more sensitive to thermal deformation , while bearing life than double push - push-push low . Push- push-push one pair of ends mounted thrust bearing and radial ball bearings portfolio, the screw has a maximum stiffness , which can be used at both ends of the double bearing , thrust bearing and last radial ball bearings, and impose tight top force . The essentials appropriate for high rigidity , high speed, high precision , precision ball screw drive system . However, this arrangement can essentials thermal deformation of the screw into the thrust bearing preload , so plan requires increase the thrust bearing stiffness of the bearing ability and bracket . Double push a simply supported at one end mounted type thrust bearing , a second end attached to the ball bearings , axial stiffness is not too high ; ball out of the use of thermal deformation should be too small and the impact of resettlement should be too small to make heat and screw things when away from the common section at one end mounted thrust bearing , thrust bearing due to restrained thermal elongation and bred gap . pushing a freestyle thrust bearing mounted at one end and the other end unconnected. Its end is the free state, so carrying ability of small , low axial stiffness