| 摘要 |
A plurality of rollers of a linear guide apparatus roll on both rolling element raceway surfaces formed on a guide rail and a slider main body. The slider main body has chamfered portions formed by chamfering end portions of the rolling element raceway surfaces thereof and curved surfaced portions between the rolling element raceway surfaces and the chamfered portions. The curved surfaced portions are formed by grinding boundaries between the rolling element raceway surfaces and the chamfered portions into an arcuate shape with radius of curvature r<SUB>L </SUB>that the ratio of the curvature r<SUB>L </SUB>and the diameter D<SUB>W </SUB>of the rollers r<SUB>L</SUB>/D<SUB>W</SUB>>=0.02 or more.
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