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 ball bearingRange of production:- Series LM, LME, LMB, LM-AJ, LME-AJ, LMB-AJ, LM-OP, LME-OP, LMB-OP, LM-L, LME-L,LMB-L, KHFlanged Linear motion ball bearing- Series LMF, LMEF, LMBF, LMK, LMEK, LMBK, LMH, LMFP, LMKP, LMHP, LMF-L,LMEF-L, ...