Patent ID: 7543684

Claim:
An oil-conducting apparatus for a linear motion system comprising a first element and a second element, wherein a rolling groove is formed in each of two lateral surfaces of the second element for reception of a plurality of rolling elements, the first element is moveable relative to the second element through rolling action of the rolling elements, the oil-conducting apparatus includes an oil tank for storage of lubricant, the oil tank is connected to the guide rolling groove by at least an oil pipe, at a mid portion of the oil pipe is a hollow compression zone that is to be fixed on the first element, the oil pipe is provided with a check valve at each end of the compression zone, the check valves are to be open toward the oil pipe and extend to an end of the rolling groove, the compression zone has a projecting portion that is to be inserted in the rolling groove and to be pressed by the rolling elements when the rolling elements pass by, thus producing pressure in the compression zone and enabling the lubricant to be transported to the rolling passage via the check valves.