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Screw Tester

Model HV-EXP2577
Technical Description The main element of the unit is a slotted, elastically deformable steel block. By tightening the bolt joint, the slotted area is deformed, thereby generating an axial tension force in the bolt. Theresulting deformation is recorded by a mechanical dial gauge, and is directly related to the bolt tension force generated. The bolt joint is tightened and slackened using a special torque wrench, which can be set sensitively with the aid of a threaded spindle. By using an axial bearing, the head friction of the bolt can be largely excluded, so that only the friction of the threaded jointis measured. The well-structured instructional materialoutlines the fundamentals of the theory and provides a step-by-step guide through the experiments..

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