Patent ID: 7798716

Claim:
A linear device, comprising a first substantially rod-shaped functional unit; a second functional unit that at least partially encompasses said first functional unit, said functional units being movable relative to one another; at least one endless rolling element track for moving said functional units relative to one another, said at least one endless rolling element track including a load-bearing rolling element channel segment, a return channel segment, and two deflecting channel segments that connect said load-bearing rolling element channel segment and said return channel segment to each other, said second functional unit having a main body and at least one end plate unit which rests with a contact surface against an end surface of said main body and contains one of said deflecting channel segments of said rolling element track, said end plate unit being provided with a lubrication groove which is open toward said contact surface and extends essentially in a transverse direction, which is orthogonal to both a vertical direction and a longitudinal direction of the first functional unit, and therefore extends at least partially in a circumferential direction around said first functional unit, said end plate unit being fastenable to said main body by only two fastening elements, and a region of said contact surface adjacent to said lubrication groove and encompassing said lubrication groove being raised in relation to a rest of said contact surface, wherein said end plate unit has a base part and an insert part that includes said contact surface, and wherein said lubrication groove is a lubricant distributing groove, which is connected to at least two connecting points for supplying lubricant to the lubricant distributing groove and which is also connected via a single, central through opening in the center of the lubricating groove between said at least two connecting points to a lubrication duct system, which supplies lubricant from the single, central through opening to the rolling element track, and wherein the single, central through opening extends in a vertical direction and is centrally arranged in the transverse direction in the center of the lubricant distributing groove.