以負載確定直徑電機性能參數中有輸出扭矩，如果還帶減速器也要算進去（考慮效率），計算一下實際工況中需要多大推力，滾珠絲杠樣本（跟廠家要）有負載參數（即推力參數，一般標示為動負荷和靜負荷，看前者即可），選擇滾珠絲杠的公稱直徑

The output torque is included in the performance parameters of the diameter motor determined by the load. If a reducer is also included (considering efficiency), calculate how much thrust is required in actual working conditions. The ball screw sample (required from the manufacturer) has load parameters (i.e. thrust parameters, usually marked as dynamic load and static load, the former is sufficient), and select the nominal diameter of the ball screw

以直線速度和旋轉速度確定滾珠絲杠導程電機確定了就知道輸出轉速，考慮一下你需要的直線速度，把電機轉速（如果帶減速器再除以減速比）乘以絲杠導程的值就是直線速度，該值大于需要值即可

Determine the ball screw lead by linear speed and rotational speed. Once the motor is determined, the output speed is known. Consider the maximum linear speed you need. Multiply the motor speed (if equipped with a reducer, then divide by the reduction ratio) by the value of the screw lead to obtain the linear speed, which is greater than the required value

以實際需要確定確定滾珠絲杠長度（總長=工作行程+螺母長度+余量+安裝長度+連接長度+余量如果增加了防護，比如護套，需要把護套的伸縮比值（一般是1：8，即護套的伸長量除以8）考慮進去

Determine the length of the ball screw based on actual needs (total length=working stroke+nut length+safety margin+installation length+connection length+margin). If additional protection is added, such as a protective sheath, the expansion ratio of the sheath (usually 1:8, i.e. the maximum elongation of the sheath divided by 8) needs to be taken into account

以實際需要確定滾珠絲杠精度一般機械選c7以下即可，數控機床類選c5的比較多（對應國內標準一般是p5~p4和p4~p3級，具體參看樣本）

To determine the accuracy of ball screws based on actual needs, mechanical selection of c7 or below is generally sufficient. There are many CNC machine tools that choose c5 (corresponding to domestic standards generally ranging from p5 to p4 and p4 to p3, please refer to the sample for details)

以安裝條件和尺寸結構等確定滾珠絲杠螺母形式（螺母有很多結構，不同的螺母結構尺寸略有不同，視情況選擇，建議不要選太特殊的，萬一出點毛病維修換件無門）

Determine the form of the ball screw nut based on installation conditions, size structure, etc. (There are many structures of nuts, and the size of different nut structures may vary slightly. Choose according to the situation, and it is recommended not to choose too special ones. In case of any problems, repair and replacement parts are not available)

詢問所選產品廠家的、付款條件和交貨時間這一點設計人員不要以為就是采購的事，事實上很多廠家（進口國產一個樣）的產品樣本上有的型號它根本就不生產或者不接小額訂單，印上去大概是為了顯示我是大廠，無所不能造別等你選完了出完圖了其他件按這個型號開始做配件了去購買的時候人家告訴你這個型號交貨期需要3、4個月就完蛋了

Designers should not assume that inquiring about the price, payment terms, and delivery time of the selected product manufacturer is just a matter of procurement. In fact, many manufacturers (one sample from imported and domestic products) have models on their product samples that they do not produce or accept small orders. Printing them is mostly to show that I am a large factory, Don't wait until you finish selecting and drawing other parts, and then start making accessories according to this model. When you make a purchase, they tell you that the delivery time for this model will take 3-4 months and it will be over

選擇確定安裝方式（端部）這個安裝件可以自己設計，也可以買現成的，有標準安裝座可選自己設計注意受力狀態，軸承選擇7000或3000系列的，因為絲杠工作時主要受軸向力，徑向受力要盡力避免

Choose to determine the installation method (end). This installation component can be designed by oneself or purchased ready-made. There are standard installation seats available for personal design. Pay attention to the stress state, and it is best to choose bearings from the 7000 or 3000 series, as the screw is mainly subjected to axial force during operation, and radial force should be avoided as much as possible

考慮導向件和安裝能力和滾珠絲杠配套的導向件選擇滾珠直線導軌，當然直線軸和直線軸承的搭配是相對經濟的選擇

Considering the guidance components and installation capabilities, it is recommended to choose a ball linear guide rail as the guidance component that matches the ball screw. Of course, the combination of linear shaft and linear bearing is a relatively economical choice

根據以上已確定條件繪出滾珠絲杠圖紙（主要是端部安裝尺寸，這個要詳細，要提供形位尺寸和公差）

Draw a drawing of the ball screw based on the determined conditions above (mainly the end installation dimensions, which should be detailed and provide geometric dimensions and tolerances)