Retainer for linear guideway and linear guideway using the same

A retainer for a linear guideway, comprising a main body extending along a longitudinal direction, a retaining portion extending from a long side of the main body along a width direction which is perpendicular to the longitudinal direction, and a hollow portion formed under a part of the retaining portion, wherein when the retaining portion is compressed, the part of the retaining portion is elastically deformed relative to the main body through the hollow portion;

• wherein the retaining portion includes a first retaining part, a second retaining part, and a plurality of third retaining parts located between the first retaining part and the second retaining part and abutted with the hollow portion;
• the retainer further has a plurality of gaps commutating with the hollow portion;
• each of the third retaining parts is located between two adjacent gaps of the plurality of gaps, such that when one of the third retaining parts is compressed, the compressed third retaining part is elastically deformed through the hollow portion and the gaps.