A linear guideway with an embedded sensor includes a track, a slider, a plurality of rolling members, and a sensing module. The track extends in a first direction and has a first recess. The slider can move in the first direction and include a second recess, a channel, at least one hole, and a deforming region. The channel is formed by coupling the first recess and the second recess, and extends in the first direction. The hole extends from the surface of the slider along the insertion axis and into the slider. The rolling members are disposed in the channel. The sensing module is disposed in the hole, and contacts the deforming region to detect the amount of deformation.

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 lubricating tube includes an inner surrounding surface that has a non-circular cross-section, angularly spaced-apart inner lubricant-storing recesses, and guide surface portions each of which is interconnected between two adjacent ones of the inner lubricant-storing recesses. The inner lubricant-storing recesses and the guide surface portions constitute the inner surrounding surface and cooperatively define a roller passage hole. The inner lubricant-storing recesses are indented from the guide surface portions toward the outer surrounding surface. A slide rail device having the lubricating tube is also disclosed.

A linear guideway with an embedded sensor includes a track, a slider, a plurality of rolling members, and a sensing module. The track extends in a first direction and has a first recess. The slider can move in the first direction and include a second recess, a channel, at least one hole, and a deforming region. The channel is formed by coupling the first recess and the second recess, and extends in the first direction. The hole extends from the surface of the slider along the insertion axis and into the slider. The rolling members are disposed in the channel. The sensing module is disposed in the hole, and contacts the deforming region to detect the amount of deformation.

A motion guide apparatus is provided which can make a carriage compact without reducing a rated load and an allowable load. The motion guide apparatus includes: a track member (1) and a carriage (2) that moves along the track member (1). A circulation path (7) of the carriage (2) includes a loaded path (C1), a return path (C2) parallel to the loaded path (C1), and a substantially U-shaped turn path (C3) connected to the loaded path (C1) and the return path (C2). At least a part of the turn path (C3) bends in side view in a direction where the loaded path (C1) and the return path (C2) coincide.

Provided is a state diagnosis system, which is applied to a rolling guide device in which a moving member including an endless circulation path for rolling elements is freely movable along a track member, and which is configured to appropriately recognize a state of a rolling surface of the track member. The state diagnosis system includes: a sensor configured to detect a physical quantity exhibited when the moving member is moving along the track member; a signal processing unit configured to process an output signal from the sensor to output analysis data; and a determination processing unit configured to compare the analysis data with threshold value data to determine whether or not the rolling guide device has an abnormality. Further, when a cycle at which each of the rolling elements, which moves back and forth in the endless circulation path, enters a loadpath from a no-loadpath is represented by t, a data collection time period T, for which the signal processing unit takes in the output signal from the sensor, is set to satisfy Tt.

In this motion guide device (10), a track member (20) has a recess or protrusion (51) that is formed in a longitudinal direction, and a moving member (30) has a holding protrusion or holding recess (53) that corresponds to the recess or protrusion (51) formed in the track member (20). When force is applied in a direction that would cause relative separation of the moving member (30) and the track member (20), the holding protrusion or holding recess (53) holds onto the recess or protrusion (51) such that the moving member (30) and the track member (20) are unable to be separated. With this configuration, a motion guide device that is both compact and capable of withstanding a strong external load can be obtained.

Provided is a state diagnosis system, which is applied to a rolling guide device in which a moving member including an endless circulation path for rolling elements is freely movable along a track member, and which is configured to appropriately recognize a state of a rolling surface of the track member. The state diagnosis system includes: a sensor configured to detect a physical quantity exhibited when the moving member is moving along the track member; a signal processing unit configured to process an output signal from the sensor to output analysis data; and a determination processing unit configured to compare the analysis data with threshold value data to determine whether or not the rolling guide device has an abnormality. Further, when a cycle at which each of the rolling elements, which moves back and forth in the endless circulation path, enters a loadpath from a no-loadpath is represented by t, a data collection time period T, for which the signal processing unit takes in the output signal from the sensor, is set to satisfy Tt.

Disclosed is a securing device for providing a movable unit of a linear guiding mechanism with additional safety in that the securing device prevents the movable unit from coming off a guiding rail in case of a bearing malfunction. The securing device comprises at least one securing portion and a coupling portion for coupling the at least one securing portion to the movable unit. The securing portion is engageable with the guiding rail in case of a failure of the movable unit.

A motion guiding device includes a supporting body and a moving body. The moving body includes a moving body main body, a cover body and a circulation component. The cover body includes a first lubrication groove. The motion guiding device is further provided with a lubrication path component, the lubrication path component including a second lubrication groove having a cross-sectional area less than that of the first lubrication groove. When a lubricating oil is used as the lubricant, the lubricant is supplied by a lubricating oil lubrication path formed by the first lubrication groove and the second lubrication groove. In this way, in the motion guiding device, the lubrication path may be widened when the lubricating grease is used to lubricate, while the lubrication path may be narrowed when the lubricating oil is used to lubricate, so that a good lubrication may be easily achieved.