| 摘要 |
A linear motion guide characterized in that a track (11) is provided with two raceway grooves (11a) in an upper surface thereof, and one or two raceway grooves (11b) in side surfaces thereof, a slider (12) being provided in the portions of its recess (12c) which are opposed to the raceway grooves (11a, 11b) in the track (11) with raceway grooves (12a, 12b), the depth of each of the raceway grooves being substantially close to a half of the diameter of a ball rolling therein, a distance between the two raceway grooves (11a) formed in the upper surface of the track (11) and that between these raceway grooves (11a and 11b) formed in the side surfaces of the track being changed variously with respect to the distance between the corresponding raceway grooves (12a, 12b) in the slider (12). This enables the production of a linear motion guide apparatus having an optimum contact angle by setting the distances between the raceway grooves in the track (11) and slider (12) in accordance with load conditions. <IMAGE> |
