Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.

Abstract: A sealing material 10 for sealing between a hole 21 of a structure 20 and a shaft 30 inserted into the hole 21. The sealing material 10 includes a sliding layer 11 and an elastic integument layer 12. The sliding layer 11 has a ring shape or cylindrical shape whose inner peripheral surface slides with the shaft 30 during movement of the shaft 30 relative to the structure 20. The sliding layer 11 has a fiber and an elastomer integrated with each other. The elastic integument layer 12 is laminated on an outer peripheral surface side of the sliding layer 11, and has a porous structure.

Abstract: A slider slidably straddling over a guide rail, an attachment plate having a square U-shape attached to an end surface of the slider and including opposite vertical frames and a horizontal frame connecting the vertical frames, and a sliding scraper fitted in a square U-shape groove of the attachment plate and including opposite vertical portions and a horizontal portion connecting the opposite vertical portions, and a groove portion that is in sliding contact with the guide rail are provided, and protrusion portions at which the vertical frames and the vertical portions are in abutment with each other are provided an open end portion of an inner side surface of each of the opposite vertical frames of the attachment plate or an end portion of an outer side surface of each of the opposite vertical portions of the sliding scraper, the end portion facing the relevant open end portion.

Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.

Abstract: A shaft structure installed in a shaft capable of making a power-transmission, the shaft structure including: a male component having a plurality of male splines formed on an outer peripheral part thereof; and a female component having a plurality of female splines formed on an inner peripheral part thereof, the inner peripheral part configured to allow the outer peripheral part of the male component to be engaged therein so that the male component and the female component can be slidably fitted with respect to each other in an axial direction thereby making up said shaft structure, wherein the outer peripheral part of the male component and the inner peripheral part of the female component have a fabric impregnated with rubber or resin interposed therebetween.

Abstract: A slider slidably straddling over a guide rail, an attachment plate having a square U-shape attached to an end surface of the slider and including opposite vertical frames and a horizontal frame connecting the vertical frames, and a sliding scraper fitted in a square U-shape groove of the attachment plate and including opposite vertical portions and a horizontal portion connecting the opposite vertical portions, and a groove portion that is in sliding contact with the guide rail are provided, and protrusion portions at which the vertical frames and the vertical portions are in abutment with each other are provided an open end portion of an inner side surface of each of the opposite vertical frames of the attachment plate or an end portion of an outer side surface of each of the opposite vertical portions of the sliding scraper, the end portion facing the relevant open end portion.

Abstract: A shaft structure installed in a shaft capable of making a power-transmission includes a male component having splines and spline bottoms on an outer periphery, a female component having splines and spline bottoms on an inner periphery and allows the male component to be slidably inserted in an axial direction thereby making up the shaft structure, and an elastic member covering the outer or inner periphery of the male or female component, wherein the female component has substantially U or V-shaped cross-section grooves on the outer periphery as opposed to splines, and a shape defined by the spline of the female component and the groove is such a shape that when the male or female component is twisted and a stress is applied to the spline in a direction around the shaft, the spline could be elastically deformed and absorb a maximum design stress within an elastic region.

Abstract: A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.

Abstract: A shaft structure including: a male component having male spline parts and male spline bottom parts on an outer peripheral part; a female component having female spline parts and female spline bottom parts on an inner peripheral part configured to allow the male component to be slidably inserted in an axial direction; and an elastic member arranged on the male component covering a surface of the outer peripheral part of the male component, wherein, in an initial state where the male component is inserted into the female component, the female and male components have first gaps between: sides of the female spline parts; and sides-facing portions of the elastic member, and when the male component is rotated, a time from the initial state to a state where the sides of the female spline parts abut on the portions of the elastic member, has predetermined time differences along the axial direction.

Abstract: A rack includes a plurality of thin plates laminated with each other, wherein each of the plurality of thin plates is formed with a set of rack teeth, and adjacent thin plates, which are laminated adjacently to each other, of the plurality of thin plates are fixed together such that respective rack-tooth positions of the adjacent thin plates are displaced from each other in axial directions of adjacent sets of rack teeth.

Abstract: A shaft structure including: a male component having male spline parts and male spline bottom parts on an outer peripheral part; a female component having female spline parts and female spline bottom parts on an inner peripheral part configured to allow the male component to be slidably inserted in an axial direction; and an elastic member arranged on the male component covering a surface of the outer peripheral part of the male component, wherein, in an initial state where the male component is inserted into the female component, the female and male components have first gaps between: sides of the female spline parts; and sides-facing portions of the elastic member, and when the male component is rotated, a time from the initial state to a state where the sides of the female spline parts abut on the portions of the elastic member, has predetermined time differences along the axial direction.

Abstract: A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.

Abstract: A shaft structure installed in a shaft capable of making a power-transmission, the shaft structure including: a male component having a plurality of male splines formed on an outer peripheral part thereof; and a female component having a plurality of female splines formed on an inner peripheral part thereof, the inner peripheral part configured to allow the outer peripheral part of the male component to be engaged therein so that the male component and the female component can be slidably fitted with respect to each other in an axial direction thereby making up said shaft structure, wherein the outer peripheral part of the male component and the inner peripheral part of the female component have a fabric impregnated with rubber or resin interposed therebetween.