Patent ID: 7309162

Claim:
A linear guide, comprising: a guide rail which has a first rolling element rolling groove extending in an axial direction; a slider which has a second rolling element rolling groove opposed to the first rolling element rolling groove of the guide rail and is laid across the guide rail so as to relatively move along the axial direction through rolling movements of a plurality of balls disposed between the first rolling element rolling groove and the second rolling element rolling groove; and a separator which is interposed between the balls which are adjacent to each other, wherein the slider has: a slider main body which has a rolling element passage extending through the slider main body in the axial direction; and an end cap which has a direction changing passage in a curved shape for communicating the rolling element passage and a passage formed by the first and second rolling element rolling grooves, and is fixed to an axial end portion of the slider main body, and the separator has: a separator main body which is interposed between the balls which are adjacent to each other; arm portions which are integrally provided at end portions of the separator main body in a groove-widthwise direction of the rolling element rolling grooves; and a guide groove which guides the arm portions of the separator along a circulating direction of the balls when the balls circulate along the passage formed by the first and second rolling element rolling grooves, the direction changing passage and the rolling element passage.