| 摘要 |
The measurement apparatus comprises a slide (3) with a feeler (8), mounted so as to slide on a support piece (2). The latter has two cylindrical rolling bearing surfaces (10) of semicircular cross-section. Interchangeable rolling bearing pieces (13) are screwed to the slides and comprise two rollers (11) whose spindles make an angle of 90 DEG with each other. By virtue of this construction, the manufacture of the apparatus is facilitated while retaining a high degree of precision in the guiding of the slide (3). <IMAGE>
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