Bushing yana nufin hannun rigar zobe da ake amfani da shi azaman matashin waje wajen sassa na inji.Bushing na iya taka rawa da yawa, a gaba ɗaya, nau'in nau'in sashi ne wanda ke kare kayan aiki.Bushing na iya rage lalacewa na kayan aiki, girgizawa da hayaniya, kuma yana da tasirin hana lalata tare da sauƙaƙe kiyaye kayan aikin injiniya.