释义 |
滚动轴承gǔndòng zhóuchéng轴承的一种,利用滚珠或滚柱的滚动来代替滑动。摩擦力较小,但承受冲击负荷不及滑动轴承。按构造不同,可分为滚珠轴承、滚柱轴承和滚针轴承。{ball bearing; bearing that rotates instead of slides by means of balls or rollers, and with reduced friction, bears a smaller load than sliding bearing; in terms of mechanical structure, divided into ball bearing, roller bearing and needle bearing} |