Patent 7334343 was granted and assigned to NSK Ltd. on February, 2008 by the United States Patent and Trademark Office.
Rolling element holding members have two holding window for holding rolling elements in rolling element running channels formed between both track faces of a rail and a slider. Further, the rolling element holding members are held between two end caps fixed opposite end surfaces of the slider by engagement of four retaining grooves formed on the end caps and opposite end portions of the rolling element holding members.