| 摘要 |
A linear-motion bearing unit includes a track shaft and a bearing body. The bearing body has both skirts and a recess formed between the skirts, and is moved in a straight line along the track shaft by fitting the recess on the track shaft through the intermediary of rolling members. The linear-motion bearing unit further includes a longitudinal side plate made of a synthetic resin. The side plate is mounted within a longitudinal notch formed on the outer side of each skirt, such that the notched outer side of the skirt and the inner side of the side plate together form non-loaded rolling member rolling passages through which rolling members rolling between the bearing body and the track shaft are circulated.
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