LM Guide THK - Industrial Technologies
LM Guide THK - Industrial Technologies
LM Guide THK - Industrial Technologies
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Индастриал Технолоджис www.industrial‐technologies.com.ua +38 044 498 21 94Superb Error-Absorbing Capability with the DF DesignFeatures and TypesFeatures of the <strong>LM</strong> <strong>Guide</strong>Since the <strong>LM</strong> <strong>Guide</strong> has a contact structure similar to the front-to-front mount of angular ball bearings,it has superb self-adjusting capability.Angular Ball Bearings Mounted Front-to-front (DF type)Angular Ball Bearings Mounted Back-to-back (DB type)DF Type Four-row Angular Contact (<strong>LM</strong> <strong>Guide</strong>)Four-row Gothic-arch ContactAn <strong>LM</strong> ball guide mounted on a plane receives a moment (M) due to an error in flatness or in level ora deflection of the table. Therefore, it is essential for the guide to have self-adjusting capability.MDistance fromthe applicationpoint<strong>LM</strong> <strong>Guide</strong> Model HSRMounting errorDeflectionDeflectionTableMDistance fromthe applicationpointSimilar Product of a CompetitorDistance from theapplication pointBlockM MMounting errorDeflectionDeflectionDistance from theapplication point<strong>LM</strong> <strong>Guide</strong><strong>Industrial</strong> <strong>Technologies</strong>Since the distance from the application point of the Since the distance from the application point of thebearing is small, the internal load generated from a bearing is large, the internal load generated from amounting error is small and the self-adjusting capability mounting error is large and the self-adjusting capabilityis large.is small.With an <strong>LM</strong> ball guide having angular ball bearingsmounted back-to-back, if there is an error in flatness ora deflection in the table, the internal load applied to theblock is approx. 6 times greater than that of the front-tofrontmount structure and the service life is muchshorter. In addition, the fluctuation in sliding resistanceis greater.A1-19