ball bearing
短语滚珠轴承
词形变化
ball bearings
复数
ball bearings
别名
ballbearing
BB
释义与例句
n.
-
1.
A bearing assembly which uses spherical bearing balls as the rolling elements, usually consisting of two ballraces (rings).
滚珠轴承
工程 -
2.
An individual spherical ball, usually made of steel or other hard material, suitable for use in a ball-based rolling element bearing.