滾珠絲杠是將回轉運(yun)動轉化為(wei)直線運(yun)動，或(huo)將直線運(yun)動轉化為(wei)回轉運(yun)動的(de)理想(xiang)的(de)產(chan)品(pin)。

滾珠絲杠(gang)是(shi)工具(ju)機械(xie)(xie)和精密機械(xie)(xie)上(shang)最常使用的(de)傳動(dong)元件，其(qi)主要(yao)功能是(shi)將旋(xuan)轉(zhuan)(zhuan)(zhuan)運動(dong)轉(zhuan)(zhuan)(zhuan)換成線性(xing)運動(dong)，或將扭矩轉(zhuan)(zhuan)(zhuan)換成軸向反復作用力，同時(shi)兼(jian)具(ju)高(gao)精度、可(ke)逆性(xing)和高(gao)效率的(de)特點(dian)。由(you)于具(ju)有很小的(de)摩擦阻力，滾珠絲杠(gang)被廣泛應用于各(ge)種(zhong)工業設備和精密儀器。

滾(gun)珠絲杠(gang)由(you)螺(luo)(luo)桿(gan)、螺(luo)(luo)母、鋼球、預(yu)壓片、反(fan)向器(qi)、防塵(chen)器(qi)組成。它的功能是(shi)(shi)將旋(xuan)轉運(yun)動(dong)(dong)(dong)(dong)(dong)轉化成直(zhi)線運(yun)動(dong)(dong)(dong)(dong)(dong)，這(zhe)是(shi)(shi)艾克姆螺(luo)(luo)桿(gan)的進一步延伸和發展，這(zhe)項發展的重(zhong)要意義就是(shi)(shi)將軸承從(cong)滑動(dong)(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)(dong)作變成滾(gun)動(dong)(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)(dong)作。當滾(gun)珠絲杠(gang)作為主動(dong)(dong)(dong)(dong)(dong)體時(shi)，螺(luo)(luo)母就會(hui)隨絲桿(gan)的轉動(dong)(dong)(dong)(dong)(dong)角(jiao)度按照對應規格的導程轉化成直(zhi)線運(yun)動(dong)(dong)(dong)(dong)(dong)，被動(dong)(dong)(dong)(dong)(dong)工(gong)件(jian)可以通(tong)過螺(luo)(luo)母座(zuo)和螺(luo)(luo)母連接，從(cong)而(er)實現(xian)對應的直(zhi)線運(yun)動(dong)(dong)(dong)(dong)(dong)。

滾珠絲(si)(si)杠(gang)(gang)軸(zhou)承(cheng)為適應(ying)各(ge)種用(yong)(yong)途，提供(gong)了(le)(le)標準化種類繁多的產(chan)品。廣泛應(ying)用(yong)(yong)于機床(chuang)，滾珠的循(xun)環方(fang)式(shi)(shi)有(you)循(xun)環導管式(shi)(shi)、循(xun)環器式(shi)(shi)、端蓋式(shi)(shi)。預壓(ya)(ya)(ya)方(fang)式(shi)(shi)有(you)定位預壓(ya)(ya)(ya)（雙(shuang)螺母方(fang)式(shi)(shi)、位預壓(ya)(ya)(ya)方(fang)式(shi)(shi)）、定壓(ya)(ya)(ya)預壓(ya)(ya)(ya)。可根(gen)據(ju)用(yong)(yong)途選(xuan)擇適當類型。絲(si)(si)桿有(you)高精(jing)(jing)(jing)度(du)研磨加工的精(jing)(jing)(jing)密滾珠絲(si)(si)杠(gang)(gang)（精(jing)(jing)(jing)度(du)分為從CO-C7的6個等級(ji)）和經高精(jing)(jing)(jing)度(du)冷軋(ya)加工成(cheng)型的冷軋(ya)滾珠絲(si)(si)杠(gang)(gang)軸(zhou)承(cheng)（精(jing)(jing)(jing)度(du)分為從C7-C10的3個等級(ji)）。另(ling)外(wai)，為應(ying)付(fu)用(yong)(yong)戶(hu)急需交貨的情況，還有(you)已(yi)對軸(zhou)端部(bu)進行了(le)(le)加工的成(cheng)品，可自由對軸(zhou)端部(bu)進行追加工的半成(cheng)品及冷軋(ya)滾珠絲(si)(si)杠(gang)(gang)軸(zhou)承(cheng)。作(zuo)為此軸(zhou)承(cheng)的周(zhou)邊零(ling)部(bu)件，在使用(yong)(yong)所(suo)必要的絲(si)(si)杠(gang)(gang)支撐單(dan)元(yuan)、螺母支座(zuo)、鎖緊螺母等也已(yi)被標準化生產(chan)了(le)(le)，可供(gong)用(yong)(yong)戶(hu)選(xuan)擇使用(yong)(yong)。