Amfani da kafofin watsa labarai: ruwa, man fetur, gas da wasu lalata ruwa (WOG)

Bearing waldi ball bawul ne na hannu irin ball bawul. Ball bawul ne mai amfani da spheres tare da zagaye tashar don buɗewa da rufewa sassa, da spheres juya tare da bawul sanda cimma buɗewa da rufewa aiki bawul. Ball bawul ta bude da rufe wani rami sphere, juyawa a kusa da axis a tsaye da tashar, don haka cimma burin bude da rufe tashar. Ball bawul ne yafi amfani da yanke ko haɗin bututun da kayan aiki kafofin watsa labarai, kuma za a iya amfani da shi a daidaitawa da kuma sarrafa ruwa, ball bawul ne ruwa juriya kananan, tsari mai sauki, kananan girma, haske nauyi, kusa da abin dogara, aiki da sauki maintenance, ba zai haifar da lalacewa na bawul rufi farfajiyar, m kewayon aikace-aikace.