Patent ID: 7234867
Filing Date: 2007-06-26
Classification: F16C

Abstract:
1. A linear motion guide unit; comprising a guide rail having first raceway grooves on lengthwise sides thereof, and a slider conforming to the guide rail to fit over the guide rail for movement relatively to the guide rail by virtue of more than one rolling element; wherein the slider is composed of a carriage having second raceway grooves in opposition to the first raceway grooves to define load races between them and having return passages in parallel with the load races, end caps arranged on fore-and-aft ends of the carriage, one to each end, and each made therein with the turnaround passages to communicate the load races with the return passages, and end seals installed on the end surfaces of the end caps, one to each end cap, the carriage and the end caps joining together with one another to establish recirculating circuits including the load races, turnaround passages and the return passages to allow the rolling elements to roll through there; wherein the slider includes a carriage casing composed of sidewise opposing fore-and-aft side panels and forward and aft end panels spaced fore and aft and made integral with the side panel; and wherein the carriage, carriage casing and the end caps are joined together to form a complete slider in a way that the carriage fits into the carriage casing between the forward and aft end panels and further the end caps are joined to outward end surfaces of the end panels of the carriage casing where the carriage has fit into there, with using fit-engagement of mating parts of the end caps with other complementary mating parts on both the carriage casing and the carriage.