A method of assembling the motion guide device and motion guide device

Moving block provides a motion guide device capable of attenuating to vibrate in the axial orthogonal direction of the track rail. The moving block body 4, provided with a damping plate 8 having a surface opposite the surface of the track rail 1. Surface of the damping plate 8, or in contact with the track rail 1, or the gap between the track rail 1 is set to zero as possible. When the vibration from the track rail or moving block is generated, by which the surface of the surface and the damping plate 8 of the track rail 1 are in contact, the spring constant of the direction perpendicular to the axis of the motion guide device of the track rail is changed, the axis orthogonal to improve the attenuation of the direction of the vibration.