Slide rail ball bearing Nylon or steel cage Super types available ISO 9001:2000 ... certified Third party preshipment inspect linear motion ball bearing and slide rail ... , LMEKM-L, LMBKM-L, LMHM-LLinear motion ball bearing slide units- Series SC, SCE, SC-L, SCE-L, ... medical appliance, printing instrument etc.Packing:Work house: slide rail ball bearing