　　One end of the screw is fixed and the other end is free. The fixed end bearing bears axial force and radial force. This type of support is used for small stroke short lead screws.

　　(2)雙推一撐

　　（2） Double push and one support

　　絲杠一端固定，另一端支撐。固定端軸承承受軸向力和徑向力。支承端軸承僅能承受徑向力，并能使跟蹤軸向浮動(dòng)，能避免或減少因自重和彎曲而產(chǎn)生的絲杠。同時(shí)，THK滾珠絲桿熱變形可自由延伸至一端。

　　One end of the lead screw is fixed and the other end is supported. The fixed end bearing bears axial force and radial force. The bearing at the supporting end can only bear radial force and make the tracking axial floating, which can avoid or reduce the lead screw caused by self weight and bending. At the same time, THK ball screw thermal deformation can be freely extended to one end.

　　(3)雙推，雙推

　　(3) Double push

　　螺絲端固定。固定端軸承能同時(shí)承受軸向力和徑向力。該支護(hù)方法可在THK滾珠絲杠上施加適當(dāng)?shù)念A(yù)緊力，提高絲杠的支護(hù)剛度，部分補(bǔ)償絲杠的熱變形。

　　Fix the screw end. Fixed end bearing can bear axial force and radial force at the same time. The support method can apply appropriate preload on THK ball screw, improve the support stiffness of the screw, and partially compensate the thermal deformation of the screw.

　　(4)采用螺釘固定和螺母旋轉(zhuǎn)驅(qū)動(dòng)方式

　　(4) Screw fixation and nut rotation drive

　　此時(shí),螺母旋轉(zhuǎn),一邊移動(dòng)一邊沿著固定導(dǎo)螺桿軸向:因?yàn)閷?dǎo)螺桿不動(dòng),它可以避免臨界速度的限制,避免各種各樣的問(wèn)題,當(dāng)細(xì)長(zhǎng)THK滾珠螺桿高速運(yùn)行。螺母慣性小，運(yùn)動(dòng)靈活，轉(zhuǎn)速高。這樣可以對(duì)絲杠施加預(yù)緊力，提高絲杠的支撐剛度，補(bǔ)償絲杠的熱變形。

　　At this time, the nut rotates and moves along the axis of the fixed guide screw: because the guide screw does not move, it can avoid the limitation of critical speed and various problems. When the slender THK ball screw runs at high speed. The nut has small inertia, flexible movement and high rotation speed. In this way, the preload can be applied to the lead screw to improve the support stiffness of the lead screw and compensate the thermal deformation of the lead screw.

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　　These are the related contents introduced by the guide screw manufacturer. If you want to know more, please visit the website: http://m.traderpanda.net