... , competitive price, good service.2) Series: linear bush series, slide unit series, shaft support series and ball screws3) Types: LM, LME, KH ... , LMF, LMK, LMH, etc.Both metric series and inch series ... bearings, spherical plain thrust bearings, rod ends, ball joint rod ends.Series as follows: LM...UU: LM...(sylinder), LM ...