The cold rolling of a Ball Screw is made by cutting a groove of a certain depth in the smooth rod material, and the groove pitch is equal to the processing line pitch, and then rolling it with similar threads. The rolling of the ball screw is to extrude the ball screw during the cold rolling process, and the two ends of the ball screw are directly processed. Its accuracy class is medium to low, and it is suitable for ordinary equipment with low precision requirements. The industrial precision used is not high, the life is short, the efficiency is low, and the cost is low. Since the rolled wire rod is cold-rolled, the precision is very low, and the good point manufacturers can barely reach the C5 grade, but there is an advantage that the production cycle is short and the delivery is fast.
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