An oil supply device provided on a slider main body of a linear motion guide device includes: a storing member; an applicator; and a container. In the container, a storing member accommodation portion and an applicator accommodation portion are provided to be arranged in an up-down direction. A communication hole for guiding the lubricant from the storing member accommodation portion to the applicator accommodation portion is formed in the up-down direction in a partition portion which partitions the applicator accommodation portion and the storing member accommodation portion. The communication hole includes a small diameter portion which is positioned on the applicator accommodation portion side and a large diameter portion which is positioned on the storing member accommodation portion side. The storing member includes a protrusion portion capable of fitting into the large diameter portion.

An oil supply device provided on a slider main body of a linear motion guide device includes: a storing member; an applicator; and a container. In the container, a storing member accommodation portion and an applicator accommodation portion are provided to be arranged in an up-down direction. A communication hole for guiding the lubricant from the storing member accommodation portion to the applicator accommodation portion is formed in the up-down direction in a partition portion which partitions the applicator accommodation portion and the storing member accommodation portion. The communication hole includes a small diameter portion which is positioned on the applicator accommodation portion side and a large diameter portion which is positioned on the storing member accommodation portion side. The storing member includes a protrusion portion capable of fitting into the large diameter portion.

The invention relates to a carriage of a profile rail roller guide, comprising an external lubricant connection point (12) for the feeding of lubricant and comprising lubricant channels (13) for the lubricant, which are connected to rolling-element channels (4) in order to supply the rolling-element channels with lubricant, wherein a plurality of orders of lubricant channels (13) is provided, the orders being series-connected one downstream of the other in the flow direction of the lubricant, and wherein each lubricant channel (13) of a higher-ranking order is assigned a plurality of mutually parallel-connected lubricant channels (13) of a low-ranking order of lubricant channels (13). The sum of the flow cross-sectional areas of said lubricant channels (13) of the low-ranking order is equal to the flow cross-sectional area of the connected lubricant channel (13) of the higher-ranking order.

A linear motion guide unit includes a rail, a slider, and a plurality of balls. The slider includes a coil spring arranged in a first circulation passage so as to extend in a longitudinal direction. The coil spring includes a pair of first regions provided at both ends in the longitudinal direction and fitted in the first circulation passage, and a second region smaller in diameter than the pair of first regions and positioned between the pair of first regions with a gap from an inner wall surface of the first circulation passage.