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Индастриал Технолоджис www.industrial‐technologies.com.ua +38 044 498 21 94Features of Each ModelWide Rail Model HRWStructure and FeaturesBalls roll in four rows of raceways precision-ground on an <strong>LM</strong> rail and an <strong>LM</strong> block, and endplatesincorporated in the <strong>LM</strong> block allow the balls to circulate.Since retainer plates hold the balls, they do not fall off even if the <strong>LM</strong> rail is pulled out. (except modelsHRW 12 and 14LR).Each row of balls is placed at a contact angle of 45° so that the rated loads applied to the <strong>LM</strong> blockare uniform in the four directions (radial, reverse radial and lateral directions), enabling the <strong>LM</strong> <strong>Guide</strong>to be used in all orientations. In addition, the <strong>LM</strong> block can receive a well-balanced preload, increasingthe rigidity in four directions while maintaining a constant, low friction coefficient. In a low centerof gravity structure with a large rail width and a low overall height, this model can be used in placeswhere space saving is required or high rigidity against a moment is required even in a single axisconfiguration.[Compact, Heavy Load]Since the number of effective balls is large, this model is highly rigid in all directions. It can adequatelyreceive a moment even in a single rail configuration.Additionally, since the second moment of inertia of the rail is large, the rigidity in the lateral directionsis also high. Accordingly, it does not need reinforcement such as a side support.[Self-adjustment Capability]The self-adjustment capability through front-to-front configuration of <strong>THK</strong>'s unique circular-arcgrooves (DF set) enables a mounting error to be absorbed even under a preload, thus to achievehighly accurate, smooth straight motion.<strong>LM</strong> <strong>Guide</strong><strong>Industrial</strong> <strong>Technologies</strong>A1-177
Индастриал Технолоджис www.industrial‐technologies.com.ua +38 044 498 21 94HRWWide Rail Model Wide Rail Type <strong>LM</strong> <strong>Guide</strong> Model HRW0<strong>LM</strong> <strong>Guide</strong>Wide Rail Model HRWEndplateEnd sealGrease nipple<strong>LM</strong> railSide sealBallRetainer plate<strong>LM</strong> blockModels HRW12 and 14Models HRW17 to 60Cross sectionStructure and FeaturesA1-177Types and FeaturesA1-178Rated Loads in All DirectionsA1-179Equivalent LoadA1-179Service Life A1-76Radial Clearance Standard A1-90Accuracy Standards A1-95Shoulder Height of the Mounting Base and the Corner Radius A1-312Error Allowance in the Parallelism between Two Rails A1-316Error Allowance in Vertical Level between Two Rails A1-319Dimensional Drawing, Dimensional Table, Example of Model Number Coding B1-114Standard Length and Maximum Length of the <strong>LM</strong> Rail B1-118StopperB1-1184590<strong>Industrial</strong> <strong>Technologies</strong>4545A1-176
Индастриал Технолоджис www.industrial‐technologies.com.ua +38 044 498 21 94Features of Each ModelWide Rail Model HRWStructure and FeaturesBalls roll in four rows of raceways precision-ground on an <strong>LM</strong> rail and an <strong>LM</strong> block, and endplatesincorporated in the <strong>LM</strong> block allow the balls to circulate.Since retainer plates hold the balls, they do not fall off even if the <strong>LM</strong> rail is pulled out. (except modelsHRW 12 and 14LR).Each row of balls is placed at a contact angle of 45° so that the rated loads applied to the <strong>LM</strong> blockare uniform in the four directions (radial, reverse radial and lateral directions), enabling the <strong>LM</strong> <strong>Guide</strong>to be used in all orientations. In addition, the <strong>LM</strong> block can receive a well-balanced preload, increasingthe rigidity in four directions while maintaining a constant, low friction coefficient. In a low centerof gravity structure with a large rail width and a low overall height, this model can be used in placeswhere space saving is required or high rigidity against a moment is required even in a single axisconfiguration.[Compact, Heavy Load]Since the number of effective balls is large, this model is highly rigid in all directions. It can adequatelyreceive a moment even in a single rail configuration.Additionally, since the second moment of inertia of the rail is large, the rigidity in the lateral directionsis also high. Accordingly, it does not need reinforcement such as a side support.[Self-adjustment Capability]The self-adjustment capability through front-to-front configuration of <strong>THK</strong>'s unique circular-arcgrooves (DF set) enables a mounting error to be absorbed even under a preload, thus to achievehighly accurate, smooth straight motion.<strong>LM</strong> <strong>Guide</strong><strong>Industrial</strong> <strong>Technologies</strong>A1-177
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