... Ball Screw The ball screw supportunit is a bearing connected ball screw and motor ,its structure ... adjustment of preloading JIS5 level Angle contact ball bearing. Especially in EK6, 8 band mini type, ... of 45 ° ultra small Angle contact ball bearing, can achieve the stability of high rigidity, ... like sample order, we will sent by the international express, like DHL,TNT,As large order, we always sent by ...