| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a linear motion guide bearing device being interposed by a separator T having a larger outer diameter, and improved in operability, a noise characteristic, and durability. SOLUTION: In this linear motion guide bearing device wherein the separator T is interposed between the adjoining mating balls of balls K moving along a curved circulating path 8, and the balls K contact the recessed surface parts W in both the ends in the axial line direction of the separator T respectively, and contact the guide surfaces 8a and 8b of outer and inner side guide members 5 and 9 respectively to be rolled; the outer diameter dimension of the separator T is made the maximum outer diameter dimension Lϕor more in a condition wherein the balls K roll while concurrently contacting both the inner and outer side curved surfaces 8a and 8b in the path 8, and the curvature radius of the surface 8b of the path 8 is reduced to a size uncontacted to the separator T.
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