直線運(yùn)動(dòng)滾子軸承和滾動(dòng)直線球?qū)к壷С?直線運(yùn)動(dòng)滾子軸承序號(hào)簡(jiǎn) 圖名稱(chēng)結(jié)構(gòu)特點(diǎn)基本代號(hào)1 非循環(huán)直線運(yùn)動(dòng)滾子軸承滾動(dòng)體與導(dǎo)軸及外套滾道均為線接觸,故承載能力大,剛性好,僅作有限直線運(yùn)動(dòng),滾子非循環(huán)運(yùn)動(dòng)LR…滾動(dòng)直線球?qū)к壷С?/th>序號(hào)簡(jiǎn) 圖名稱(chēng)結(jié)構(gòu)特點(diǎn)基本代號(hào)1 雙列循環(huán)球?qū)к壷С?/td>滾動(dòng)體為循環(huán)球的平面導(dǎo)軌支承,作直線往復(fù)運(yùn)動(dòng),行程無(wú)限,可承受輕、中載荷LBS…DB2 球?qū)О?/td>薄型,裝配簡(jiǎn)單的平面無(wú)限直線運(yùn)動(dòng)支承,摩擦系數(shù)0.002~0.003,只可承受極輕載荷,亦可用塑料保持架LBS…FB3 盒式球?qū)к壷С?/td>沿“V”形槽作無(wú)限直線運(yùn)動(dòng),結(jié)構(gòu)緊湊,球與滾道之間隙可用偏心銷(xiāo)微調(diào),可承受中等載荷LBS…BB4 鏈球支承屬?zèng)_程式,可在成對(duì)“V”型或弧形導(dǎo)軌內(nèi)作有限行程往復(fù)運(yùn)動(dòng),結(jié)構(gòu)簡(jiǎn)單,精度高,摩擦系數(shù)低,可承受輕載荷LBS…CB