| 摘要 |
Provided is a linear motion guide device that is less noisy and excellent in operability. A concave groove (36) of a return guide (35) and a raceway groove (11) of a slider (2) are not smoothly continued at a connection portion therebetween, where a stepped portion (44) is formed. At a groove bottom portion (11a) of the raceway groove (11) of the slider (2) and the neighboring portion thereof, the surface of the raceway groove (11) of the slider (2) is located to be closer to a curvature center (O) of the raceway groove (11) of the slider (2) than the surface of the concave groove (36) of the return guide (35) is. At a groove shoulder portion (11b) of the raceway groove (11) of the slider (2) and the neighboring portion thereof, the surface of the concave groove (36) of the return guide (35) is located to be closer to the curvature center (O) of the raceway groove (11) of the slider (2) than the surface of the raceway groove (11) of the slider (2) is. |
