Kitchen Sink With Drainboard,Double Bowl Double Drainboard Sink,Double Bowl Drainboard Sink,Stainless Sink With Drainboard Guangdong Huayou Hardware Products Co.,Ltd , https://www.gudsink.com In addition to the axial stiffness of the bearing, the factor that affects the maximum thermodynamic zero is the temperature distribution in the lengthwise direction of the lead screw. Figure 1 shows a thermal image of a screw after a few hours of reciprocating operation at a distance of 150 mm. It is clearly identifiable that even after a few hours, the heating of the lead screw is almost limited to the area in which the screw nut moves. Therefore, the ball screw heat and elongation are very local.