Patent ID: 8123408

Claim:
A linear motion guide unit comprising an elongated guide rail having thereon a first raceway surface extending along a lengthwise direction of the guide rail, and a slider movable lengthwise of the elongated guide rail by virtue of more than one rolling element, the slider being comprised of a carriage made therein with a second raceway surface in opposition to the first raceway surface and a return passage extending in parallel with a load-carrying race defined between the first and second raceway surfaces, end caps mounted on lengthwise opposite ends of the carriage and made therein with turnaround passages connecting the load-carrying race with the return passage, more than one rolling element allowed to roll through a circulating circuit composed of the load-carrying race, the return passage and the turnaround passages, a retainer extending lengthwise of the carriage along the load-carrying race of the circulating circuit to keep the rollers running through the load-carrying race, and a binding strip to fasten the retainer to the carriage; wherein the binding strip is composed of a major part having at least one bend which are positioned at regular intervals in the longitudinal direction of binding strip, and lengthwise opposite angled parts prepared to come into engagement with the end caps, so that the binding strip urges elastically, at the at least one bend thereof, the retainer to come into close engagement with carriage, wherein the binding strip is an elongated plate spring slim in thickness while rectangular in cross section, and wherein the major part has a plurality of bends having a V-shape, each of which has an obtuse angle of from 160 to 175 degrees, and wherein the lengthwise opposite angled parts are further bent into hooks.