Generating Mechanism and Reduction Method of Carriage Drift in Roller Guides

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This study deals with the generating mechanism and reduction method of carriage drift (which is the differences of the carriage displacements or angular displacements at a certain position on a rail during a progress and return cycle) in roller guides. First, it was shown that the carriage drifts were observed in the roller guide and were not in the ball guide in the experiments.Next, based on a multi-body analysis, it was explained that the carriage drift occurred when a roller was skewed. Finally, to reduce the carriage drift, an anti-skewing brace was proposed.