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制造有限公司根據風機主軸的特性，冷凝器深孔鉆鏜床要加高床頭風力發電機的主軸既有徑向偏移，又有軸向偏移。實際上，主軸的軸向偏移直接傳遞到齒輪箱的輸入軸。除非對調心滾子軸承的徑向游隙，軸向游隙控制以及行星輪的定位做特別處理，否則軸向的偏移會對齒輪箱里行星架支撐軸承產生不利的影響。主軸的軸向偏移取決于系統的剛性和固定端軸承的內部游隙。無錫風機主軸是連接風機風翅與風機底座的重要部件，風機主軸是中空的，風機主軸的材質是不銹鋼的，內孔加工比較困難，現在對風機主軸的加工設備是深孔鉆鏜床，固定端軸承（雙列圓錐滾子軸承或調心滾子軸承）同時承受徑向力和軸向力，而浮動端軸承（圓柱滾子軸承或調心滾子軸承）只承受徑向力。因為軸向力作用方向是從轉子端指向齒輪箱端的，因此不管是使用雙列圓錐滾子軸承還是使用調心滾子軸承，只有靠近齒輪箱一端的一列滾子承受所有的軸向力。在固定端使用預緊的雙列圓錐滾子軸承后，主軸右端的軸向偏移幾乎比使用調心滾子軸承時減少4倍。減小軸向偏移可以減小軸向擠壓齒輪箱輸入軸的風險，這非常重要在一端固定、一端浮動的軸承布置情況下。（中譯英）Manufacturing company limited according to the characteristics of the fan spindle deep hole boring, heightening the bed main shaft of wind power generator with radial deviation, and the axial offset. In fact, the spindle is axially offset are passed directly to the input shaft of the gear box. Unless the self-aligning roller bearing radial clearance, axial clearance control and planetary wheel positioning for special treatment, or axial offset on the gear box planetary frame supporting bearing adverse impact. The spindle is axially offset depends on system of rigid and fixed end bearing internal clearance. Wuxi wind machine spindle is connected with fan fin and fan base of important parts, fan shaft is hollow, the fan spindle is made of stainless steel, inner hole processing more difficult, now on the fan shaft processing equipment for deep hole drilling and boring, fixed end bearing ( double row tapered roller bearings or roller bearing ) also bear the radial force and axial force, while the floating end bearing ( cylindrical roller bearings or roller bearings) only bear the radial force. Because of the action of axial force direction is from the rotor end pointing to the gear box end, so that the use of double row tapered roller bearing spherical roller bearing is used, only near the end of the row of roller gear box bearing all axial force. In the fixed end use preload double row tapered roller bearing, spindle right end axial displacement than the use of spherical roller bearing is almost4 times less. Decreasing axial shift axial extrusion can reduce the input shaft of the gear box of the risk, which is very important in the end is fixed at one end, a floating bearing arrangement case.（圖/文http://www.ivvvvv.com/）