ball-bearing

IPA/ˌbɔːl ˈbeərɪŋ/
IPA/ˌbɔːl ˈberɪŋ/

ball-bearing — 名詞

1. A set of tiny, hard steel balls placed between two surfaces of a machine so that

1.名詞B2
釋義

滾珠軸承

由小鋼珠組成，減少摩擦的機械零件

A set of tiny, hard steel balls placed between two surfaces of a machine so that one part can rotate or slide against the other with much less friction.

例句

Valentina replaced the old ball bearings in her bicycle's rear wheel hub.

Valentina 更換了腳踏車後輪輪轂裡的舊滾珠軸承。

collocation: replace ball bearings

After greasing the ball bearings, Ravindra tested the conveyor belt system.

塗上潤滑油後，Ravindra 測試了輸送帶系統的滾珠軸承。

同義詞
  • bearing

    a broader category; ball bearings are one type of bearing, along with roller bearings and plain bearings

  • roller bearing

    similar in function but uses short cylinders instead of balls to reduce friction

文法句型

ball bearing(s) + in + [machine part]

用法筆記

Ball bearing is most often used in the plural form (ball bearings) even when referring to a single mechanical assembly, because the component contains many small balls.

常見錯誤

❌The bearing uses ball bearing.
✅The bearing uses ball bearings.
💡Even one complete component that contains many balls is called ball bearings in the plural.