Patent ID: 7832931

Claim:
A ball connect device for a linear guideway being placed in the linear guideway and cooperating with a plurality of balls to perform linear motion along the linear guideway, characterized in that the ball connect device comprises: at least one linear ribbon-shaped connecting portion in which being formed a plurality of retaining holes for retaining the plurality of balls; a plurality of ring portions integrally extending from a surface of the connecting portion and each of the ring portions being formed around the respective retaining holes to circle around the balls, wherein the retaining holes each has two open ends, a diameter of each of the balls is D, a diameter of one of the two open ends of the respective retaining holes is D 1 , a diameter of the other one of the two open ends of the respective retaining holes is D 2 , and they satisfy the relations: D 1 ≧0.9 D, and D 2 ≦0.85 D.