SF-60 銅+鋼球 Brass material+steel ball
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SF-61 樹脂+鋼球 POM material+steel ball
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SF-62 鋁+鋼球 Aluminium material+steel ball
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優(yōu)點(diǎn)與用途 Advantage and application scope
傳統(tǒng)的具有相對運(yùn)動的孔與軸是有一定間隙的,并孔與軸之間的運(yùn)動摩擦系數(shù)較大,使用鋼球保持圈后,使軸與孔不直接接觸,而是中間通過有微量過盈的鋼球,因而運(yùn)動精度高,滾動摩擦代替了滑動摩擦,滾動靈活,摩擦系數(shù)小,使用壽命長、在既有轉(zhuǎn)動、又有移動的場合,用無油或加油的軸套與軸相配,雖然能滿足,但運(yùn)動精度較低,用滾動軸承,只能滿足軸相對轉(zhuǎn)動的場合,而鋼球保持圈,則上述二個條件均滿足,目前已廣泛應(yīng)用于冷沖模架、高精度機(jī)床、機(jī)床附件以及要求高精度軸向或軸徑向同時(shí)運(yùn)動場合。 As the traditional work-craft has some grudge between bushing with posts, and the coefficient of friction is larger, now we have changed the work-ways to steel-ball directly face to face guide bushing, so the precision is machine, die machine, high precision machine which need rotation and vertical motion.
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