Oxford Dictionary English ball bearing nounnoun BrE BrE//ˌbɔːl ˈbeərɪŋ// ; NAmE NAmE//ˌbɔːl ˈberɪŋ// How machines work Add to my wordlistjump to other results enlarge image a ring of small metal balls used in a machine to enable the parts to turn smoothly; one of these small metal balls See related entries: How machines workSee ball bearing in the Oxford Advanced American DictionaryCheck pronunciation: ball bearing oxfordlearnersdictionaries.com
