Patent ID: 7585112

Claim:
A linear motion guide apparatus comprising: a guide rail including two side portions each having at least one longitudinal groove formed therein, a slider slidably attached onto said guide rail and including a concave formed in a lower portion thereof for slidably receiving said guide rail and for allowing said slider to be guided to slide along said guide rail, said slider including at least two longitudinal groove formed therein and facing toward said at least one longitudinal groove of said guide rail respectively for forming a ball guiding channel between said slider and said guide rail, and said slider including two end portions each having two notches formed therein and communicating with said at least two longitudinal groove and said concave of said slider respectively, two end caps attached to the end portions of said slider and each including a concave formed therein for slidably receiving said guide rail and for guiding said end caps to slide along said guide rail, said end caps each including at least two turnaround formed therein and aligned with said at least two longitudinal groove of said slider respectively for forming said ball guiding channel, and two plates disposed between said slider and said end caps respectively and each including a concave formed therein for slidably receiving said guide rail and for guiding said plates to slide along said guide rail, said plates each including at least two ear extended therefrom and engaged into said notches of said slider respectively for stably anchoring and positioning said plates to said slider.