Linear motion mechanism sealants capable of operating at low torque when engaging in linear motion which are capable of carrying out sealing with respect to fine particulate several μm in diameter, and which are side seal units for sealing gaps at a shaft provided at a front end portion and a back end portion of a slider of a linear motion mechanism equipped with said shaft and said slider which carries out reciprocating linear motion on said shaft, the linear motion mechanism side seal units 4 being characterized in that fibrous surfaces of seal members comprising fibrous material are arranged so as to be directed toward said shaft in such fashion as to abut and conform to the cross-sectional shape of said shaft at the front end portion and the back end portion of the slider.

A linear guide device includes at least one linear guide unit which has a guide housing, in which two annularly closed circulating channels are formed in each of which a multitude of roller bearing elements is received. The guide housing has a single-piece housing intermediate element which contributes to the formation of the circulating channels and through which passes at least one lubrication channel which communicates with the circulating channels. The lubrication channel passes through the single-piece housing intermediate element and extends partly also in an integral pipe-stub-like lubrication appendix of the single-piece housing intermediate element, wherein the lubrication appendix includes a lubrication opening which is accessible from outside the guide housing for bringing in lubricant.

A linear motion guide unit has sleeves which form return passages and are formed of a high temperature resistant resin material which allows use in a high temperature environment. In the linear motion guide unit, spaces serving as grease pools are formed in the sleeves inserted into insertion holes of a carriage. The sleeves are formed of a thermoplastic resin whose heat distortion temperature is higher than 80° C. Each sleeve is formed by combining split circular members obtained by dividing a cylindrical member into two pieces along the longitudinal direction, and a plurality of grooves which become spaces are formed on the inner circumferential surfaces of the sprit circular members through cutting orthogonal to a parting plane between the split circular members.

A linear guide device includes at least one linear guide unit which has a guide housing, in which two annularly closed circulating channels are formed in each of which a multitude of roller bearing elements is received. The guide housing has a single-piece housing intermediate element which contributes to the formation of the circulating channels and through which passes at least one lubrication channel which communicates with the circulating channels. The lubrication channel passes through the single-piece housing intermediate element and extends partly also in an integral pipe-stub-like lubrication appendix of the single-piece housing intermediate element, wherein the lubrication appendix includes a lubrication opening which is accessible from outside the guide housing for bringing in lubricant.

A linear motion guide unit has sleeves which form return passages and are formed of a high temperature resistant resin material which allows use in a high temperature environment. In the linear motion guide unit, spaces serving as grease pools are formed in the sleeves inserted into insertion holes of a carriage. The sleeves are formed of a thermoplastic resin whose heat distortion temperature is higher than 80° C. Each sleeve is formed by combining split circular members obtained by dividing a cylindrical member into two pieces along the longitudinal direction, and a plurality of grooves which become spaces are formed on the inner circumferential surfaces of the sprit circular members through cutting orthogonal to a parting plane between the split circular members.

Provided is a bearing retainer (1) which has excellent oil resistance and impact resistance. The bearing retainer (1) retains a plurality of balls in such a manner that the balls are apart from each other. In a ball screw that is provided with a first member and a second member which moves relatively to the first member, the plurality of balls is arranged on one of the first member or the second member so as to be in contact with both of the first member and the second member, and rolling of the balls enables the relative movement. This bearing retainer (1) is formed from a resin composition that contains an elastomer component and a fluororesin which is mainly composed of vinylidene fluoride.

Provided is a bearing retainer (1) which has excellent oil resistance and impact resistance. The bearing retainer (1) retains a plurality of balls in such a manner that the balls are apart from each other. In a ball screw that is provided with a first member and a second member which moves relatively to the first member, the plurality of balls is arranged on one of the first member or the second member so as to be in contact with both of the first member and the second member, and rolling of the balls enables the relative movement. This bearing retainer (1) is formed from a resin composition that contains an elastomer component and a fluororesin which is mainly composed of vinylidene fluoride.

An actuator includes a track member provided with a base extending along a longitudinal direction and a pair of walls erected from opposite ends of the base in a width direction, with rolling-element rolling grooves formed along the longitudinal direction; and a moving member assembled movably along the longitudinal direction between the walls, with respective load rolling-element rolling grooves corresponding to the rolling-element rolling grooves being formed in the moving members; and a screw shaft passed through a through-hole formed in the moving member, with a screw rolling-element rolling groove formed in the screw shaft, the screw rolling-element rolling groove being spiral in shape, wherein the moving member has the nut member attached to the through-hole, with the screw load rolling-element rolling groove corresponding to the screw rolling-element rolling groove formed in the nut, the nut member is assembled via a flange member which includes a lubricant supply device.

Provided is a motion guide device, which includes: a track rail; rolling elements; a moving block, which has an endless circulation path; and a holding belt having pockets, wherein the holding belt has a pair of end portions opposed to each other through intermediation of a free rolling element in the endless circulation path, and wherein a condition of (XY)Z>(B+C)A>0 is satisfied, where: A represents a path length of the endless circulation path; B represents a total length of the holding belt; C represents a diameter of the free rolling element; X represents a diameter of each of the pockets; Y represents a diameter of each of the rolling elements; and Z represents the number of the rolling elements arrayed in the holding belt.

A button assembly includes a touchpad having an upper surface extending in a generally flat plane and movable between a first position and a second position displaced from the first position in response to the application of a pressing force perpendicular to the upper surface. Additional, smaller pushbuttons may be located adjacent the touchpad. A sub-bezel includes a housing defining a cavity for holding a linear bearing for guiding the touchpad in a linear path perpendicular to the upper surface. The linear bearing includes a plurality of first ball bearings and second ball bearings separated by a first distance perpendicular to the upper surface. The ball bearings may be sandwiched between a bearing outer member and a bearing inner member which includes an inner-top member secured to an inner-bottom member with a screw. A bearing carrier holds the ball bearings within troughs in the bearing outer member.