LM Guide ahs circular arc-contact mechanism whcih is different from the other company's products structure. it smoothing moves with absorbing an error in the interface and it can get high strength without the increase of the rolling resistance in spite of pre-load. Especially, Compared to the old type sliding guide, the positioning accuracy is greatly increased becaused of its lowfriction coefficients and less lost motion. The abilities of the facility requirements and customers' needs are satisfied by this linear motion system. And it is the product that is always necessary to realize the procutivity improvement by high-quality, low-price and unmanaged factory.