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滾珠絲杠的支撐軸承,,在預(yù)拉伸結(jié)構(gòu)時應(yīng)該怎么選 |
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點評
拉伸量呢?多少好,?表應(yīng)該打絲杠端部,,肯定是背靠背的,,因為背靠背的熱變形后預(yù)緊量是向縮小的跑
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