Oldham couplings su ne sassa uku masu sassauƙan raƙuman haɗin gwiwa waɗanda ake amfani da su don haɗa tuƙi da tuƙi a cikin majalissar watsa wutar lantarki. Ana amfani da mahaɗaɗɗen raƙuman raƙuman raƙuman ruwa don tinkarar kuskuren da ba makawa wanda ke faruwa tsakanin igiyoyin da aka haɗa kuma, a wasu lokuta, don ɗaukar girgiza. Material: Uubs suna cikin Aluminium, jikin roba yana cikin PA66.