Patent ID: 8113714

Claim:
A linear motion guide unit, comprising: a guide rail having a guiding face extending in a longitudinal axial direction; a slider straddling and sliding on the guide rail; an end seal attached to each of opposing end faces of the slider including a portion made of rubber straddling the guide rail, wherein the end seal has a recessed portion formed in an outer face opposite to a mounting face attached to a respective end face of the slider, the recessed portion including a bottom face axially recessed from the outer face of the end seal, the end seal includes a protruding portion extending between the bottom face of the recessed portion of the end seal and the outer face of the end seal and at least partially surrounding the bottom face of the recessed portion, and said straddling portion of the end seal having a contact face including a lip portion formed thereon, proximate to the mounting face and extending toward the recessed portion, configured to be pressed against the guiding face of the guide rail; and a wiper seal provided in the recessed portion of each end seal and impregnated with oil; a metallic sealing plate interposed between the bottom face of the recessed portion of each end seal and each respective wiper seal; the lip portion being located closer to the slider than the bottom face of the recessed portion is; each wiper seal impregnated with oil being mounted in a respective one of the recessed portions, said wiper seal being a sheet-shaped member produced by compressively molding a polyester-based polyurethane foam in a thickness direction; and a scraper disposed along an outer side of the wiper seal mounted in each recessed portion, so that the wiper seal is fixedly interposed between the scraper and the bottom face of the recessed portion.