Silver ball screw ball screw R16-2T3-FSI Where a mall (www.frn66.com). Our sales agents and Taiwan HIWIN brand silver rails, CPC rail, PMI rail, ABBA rails, LSK rails, Japan THK rails, IKO slide rail and related brand and modules. Operated products are imported original, implementing fake a compensable 10, remove your worries; while the person responsible for the implementation of each order to ensure that within 24 hours after receiving the order is shipped. The following is promotional in nature, with the company's services independent of the diameter shrinkage after cooling, resulting in waste. It is not to measure the workpiece at high temperatures. If a certain amount to the side when turning pouring enough cutting fluid, not the workpiece temperature; followed by a separate method of coarse and fine cars. More than 4 full enough blank blank no straightening bent itself, as well as causing the center hole he missed other reasons. Second, the geometry precision and the accuracy of mutual position of the main 1 is mainly the cause of the occurrence of the ellipse a. Journal axis of the ellipse is a direct reflection up to the workpiece, if the sliding bearing, the size and direction when load time-invariant, the main journal is pressed under load at a predetermined position on the bearing surface (due to the gap between the spindle and the bearing). When the spindle rotated 90 °, the change in the center position of the spindle, and the spindle so that the position of the two centers in the course of rotation, the amount of back cutting tools has changed, leaving the workpiece ellipticity. Ovality no effect on the bearing bore of the workpiece. b. blank margin uneven, with the gap between the shaft and bearing, in the process of cutting back the amount of change in eating knife. c. around the center hole does not match (two center hole at an angle with the workpiece center), the center hole only come into contact with the top side, causing uneven wear axial movement from oval d. former top swing. 2 generates the bus is not straight (sterile song, convex, saddle-shaped) and the taper of the reasons a. Lathe spindle centerline rail and mutual position is not correct, especially in the level. Such as rail bent, convex or concave workpiece, rail and spindle axis is not parallel to produce tapered so on.