Linear motion guiding apparatus

Details Linear motion guiding apparatus Linear motion guiding apparatus

2008-07-22

2008-07-22

Charles, Marcus (Department: 3682)

Bearings

Linear bearing

Recirculating

C384S043000

Reexamination Certificate

active

07401978

ABSTRACT:
A linear guiding device where noise characteristics are improved by reducing traveling noise and operability of a slider body is smoothed, and where movement braking can be improved by reducing rolling body passage vibration. Crowning24with a curved surface having a predetermined curvature radius R is provided on an end section of a rolling body raceway groove11of a bearing block24. A crowning amount C of the crowning24is set to a value C>Hmaxgreater that the value of a maximum elastic deformation amount Hmaxof a rolling body B elastically deformed in a rolling body rolling path14by a preload or an external load. By this, even when a large load acts on a bearing block2A or a large installation error occurs by skewing etc., the rolling body B smoothly rolls without an elastic deformation amount of the rolling body B rolling on the end section side of the rolling body raceway groove11becoming greater than the crowning amount C. As a consequence, significant worsening of a noise level and impairment of operability can be prevented.

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International Search Report, dated Dec. 21, 2004, including English Translation Two (2) pages.

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