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 94Accuracy of Each ModelFinite stroke Model EPFStructure and FeaturesBalls are held in cages with spherical ball holders and the balls roll in four rows of circular-arcgrooves in raceways on precision-ground <strong>LM</strong> rails and <strong>LM</strong> blocks.[Smooth motion]Because a finite stroke is used, balls do not circulateand movement is smooth even with preloading.Also, because variations in rolling resistanceare small, this model is ideal for locationswhere smooth movement is required with ashort stroke.[High Rigidity]Because model EPF uses a DB constructionfeaturing 4 sets of circular-arc grooves, it offersparticularly high rigidity with respect to momentin the MC direction. This makes it ideal for locationswhere MC moment is applied with one rail.[Miniature Type]Because the mounting method is compatiblewith the Miniature <strong>LM</strong> <strong>Guide</strong> Model RSR-N, themodels are dimensionally interchangeable.[4-way Equal Load]Each row of balls is configured at a contactangle of 45° so that the rated loads applied tothe <strong>LM</strong> block are uniform in the all directions(radial, reverse radial and lateral directions),enabling the <strong>LM</strong> <strong>Guide</strong> to be used in all orientationsand in extensive applications.[Ball cage technology application 1]Because the cage is formed out of plastic resin,there is no metal contact between the cage andthe balls, providing excellent noise characteristics,low dust emissions and long product life.[Ball cage technology application 2]Forming the cage in a spherical shape out ofplastic resin allows lubricant to be held in greasepockets, enabling long periods of maintenancefreeoperation.tanθtanθResistance[N]Resistance[N]EPF9MExisting equivalent products0.00200.00180.00160.00140.00120.0010.00080.00060.00040.000200 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8MC Moment [N-m]EPF12MExisting equivalent products0.00180.00160.00140.00120.0010.00080.00060.00040.000200 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8MC Moment [N-m]Fig.1 Comparison of MC moment test data3.0EPF9M2.5Existing equivalent products2.01.51.00.50.00 5 10 15 20 25 30Stroke [mm]3.0EPF15M2.5Existing equivalent products2.01.51.00.50.00 5 10 15 20 25 30Stroke [mm]<strong>LM</strong> <strong>Guide</strong><strong>Industrial</strong> <strong>Technologies</strong>Fig.2 Comparison of rolling resistance test dataA1-147
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