The MVN120 Precision Ball Bearing Vertical Linear Stage provides precise 0.79 inch manual height control with micron-scale sensitivity. Its high load capacity makes it especially suited to vertical positioning of heavy payloads. The stage utilizes an inclined plane design consisting of two precision-machined, opposing wedge blocks. Horizontal translation of the lower wedge is transformed into vertical motion of the upper wedge by means of inclined ball races. For linear, backlash-free travel, ball races are fabricated from precision-ground tool steel and are pre-loaded by a spring. A rotation of one division on the micrometer scale corresponds to a vertical displacement of half the linear displacement distance, thereby doubling the sensitivity. Manual positioning sensitivity can be approximately 500 nm using the BM25.40 micrometer. This stage has a large mounting platform that incorporates an array of tapped English mounting holes for the convenient attachment of components. Actuators are sold separately. Please note the Minimum and Maximum Height specs below include a 8-mm thickness of the M-PBN12 base plate which is sold separately.
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