Abstract: A slide guide unit wherein the nut member for applying a driving force to the slider and a sliding contact member for supporting the slider in motion with respect to the track rail are firmly fixed to the slider and which may be manufactured simply at low cost without increasing the number of components. The slide guide unit is characterized in that the slider is composed of a metallic core block having a mounting surface for a movable body and a resin portion built around the core block by molding, and in that the sliding contact member in sliding contact with the track rail and the nut portion in which the screw shaft is screwed are formed in a single resin piece.

Abstract: A linear motion guiding apparatus comprises a guide rail provided with a ball running groove, and a movable block movably arranged along the guide rail through balls. The movable block is provided with a ball running counter-groove, a ball returning passage arranged away from the ball running counter-groove and direction changing passages for connecting these members. A resin-formed body for forming a ball circulation passage comprises a pair of ball passage forming portions, a returning passage forming portion and a pair of direction changing passage-inner guide forming portions. The resin-formed body is separately formed from a body of the movable block.

Abstract: There is provided a rolling element spacer used in a rolling guide device having an endless circulation passage for balls, arranged alternately with many balls in the endless circulation passage, and circulating together with the balls in the endless circulation passage. In order to prevent the rolling element spacer from falling sideways and avoid a trouble such as malfunction of the rolling guide device, the rolling element spacer is formed such that its diagonal dimension in a thickness direction becomes larger than an inner diameter of the endless circulation passage.

Abstract: This invention relates to improvement of a ball screw unit in which a nut member meshes with a screw shaft via a plurality of balls circulating endlessly. The balls are disposed freely rotatably in line at a predetermined interval in a ball arranging member formed in a belt-like shape. If a relative rotation occurs between the nut member and screw shaft, the balls circulate in the infinite circulation path with the ball arranging member. Guide pieces are projected to both sides of the ball arranging member and guide grooves for accommodating each of the guide pieces are formed along the entire circumference of the infinite circulation path. Therefore, the ball arranging member is introduced by the guide grooves and circulates in the infinite circulation path without being fluttered.

Abstract: The present invention relates to a linear movement device, for example, a linear guide device, a ball screw, a ball spline or the like in which a track shaft and a slide member is engaged movably relative to each other via a rolling element of a ball, a roller or the like, in details, to an improvement of a linear movement device having a lubricant supplying member coating a lubricant on a face of the track shaft.

Abstract: A linear motion guiding apparatus comprises a guide rail provided with a ball running groove, and a movable block movably arranged along the guide rail through balls. The movable block is provided with a ball running counter-groove, a ball returning passage arranged away from the ball running counter-groove and direction changing passages for connecting these members. A resin-formed body for forming a ball circulation passage comprises a pair of ball passage forming portions, a returning passage forming portion and a pair of direction changing passage-inner guide forming portions. The resin-formed body is separately formed from a body of the movable block.

Abstract: A rolling motion guide apparatus comprises a track member having a rolling member rolling groove along a longitudinal direction of the track member, a plurality of rolling members rolling along the rolling member rolling groove of the track member, a movable member having a loaded rolling member rolling groove which constitutes a loaded rolling member rolling passage in association with the rolling member rolling groove of the track member. The movable member is movable along the track member through the rolling members rolling in the loaded rolling member rolling passage. A seal member is provided on a surface of the movable member facing the track member. The seal member is composed of a base plate portion disposed along the surface of the movable member facing the track member and sealing portions disposed to longitudinal side edge portions of the base plate portion so as to be contacted to the track member.

Abstract: An endless sliding guide apparatus including a track rail, a sliding table having an endless track comprising a load rolling path, a no-load rolling path and a change direction path and rolling bodies wherein at least one of the no-load rolling path, the inner peripheral portion of the change direction path and a rolling body retaining section of the load rolling path is formed by synthetic resin rolling body guide members formed by insert molding using a bearing race as a core. The rolling body guide members are molded by a synthetic resin composition satisfying the relational expression of (a.times.b).div.c.gtoreq.700 Mpa with respect to the tensile strength a (MPa), tensile elongation b (%) and shrinkage c (%).

Abstract: A seismic isolator includes a lower guide rail 4 having grooves on the side surfaces thereof and fitted to an upper surface of a lower plate 1, an upper guide rail 6 having grooves on the side surfaces thereof and fitted to a lower surface of an upper plate in a direction criss-crossing the lower guide rail 4, a block body 9 clamping at its lower part the lower guide rail 4 and clamping at its upper part the upper guide rail 6, a large number of rollers interposed between the lower guide rail 4 and the block body 9 and between the upper guide rail 6 and the block body 9, a large number of balls interposed between grooves of the side surfaces of the lower guide rail 4 and the block body 9 and between grooves of the side surfaces of the upper guide rail 6 and the block body 9 and a flexible member 22 fitted between the lower surface of the upper plate and the upper surface of the lower plate 1.