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一、用螺旋带钢制造球轴承保持架 球轴承保持架的通常制造方法是:钢板下料,冲压成一定尺寸的环片,最后冲压成形。这种方法的缺点是:第一,材料利用率低,约为37％（日本）,边料与料芯都被浪费,因此成本高;第二,纤维流向差,从环片来看,纤维流向就是钢板的轧制方向,成形后容易产生应力变形,降低尺寸精度;第三,保持架的宽度中心径往往向内偏移,以致钢球与保持架球窝的接触不在保持架的宽度中心。 螺旋带钢保持架的优点是:第一,材料利用率高,几乎没有浪费,大大降低了成本;第二,纤维流向好,基本上成圆形（参考图2）,成形后无应力变形,尺寸精度高,使用寿命也长;第三,钢球与保持架球窝的接触在保持架宽度的中心位置。
First, the manufacture of ball bearings with helical strip cage Cage ball bearing cage is usually the manufacturing method: steel cutting, stamping into a certain size of the ring, the last stamping. The shortcomings of this method are: First, the material utilization rate is low, about 37% (Japan), the edge material and the core are wasted, so the cost is high; Second, the fiber flow is poor, The flow direction is the rolling direction of the steel sheet, and the stress deformation and the dimensional accuracy are easily generated after the forming. Thirdly, the width center diameter of the cage tends to be shifted inwardly so that the contact between the steel ball and the cage ball socket is not in the center of the width of the cage . Spiral steel cage has the advantages of: first, high material utilization, almost no waste, greatly reducing costs; second, the fiber flow is good, basically a circle (see Figure 2), no stress after deformation, Dimensional accuracy, long service life; third, the contact of the ball and cage ball and socket in the center of the width of the cage.