Linear Positioners Catalog_en-US_revA - Kollmorgen
Linear Positioners Catalog_en-US_revA - Kollmorgen
Linear Positioners Catalog_en-US_revA - Kollmorgen
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NEMA and Material SpecificationsMaterial D<strong>en</strong>sitiesoz/in 3 lb/in 3 gm/cm 3Aluminum 1.57 0.098 2.72Brass 4.96 0.31 8.6Bronze 4.72 0.295 8.17Copper 5.15 0.322 8.91Plastic 0.64 0.04 1.11Steel 4.48 0.28 7.75Hard Wood 0.46 0.029 0.8Soft Wood 0.28 0.018 0.48Friction Coeffici<strong>en</strong>ts(Sliding)µ sSteel on Steel 0.58Steel on Steel (Greased) 0.15Aluminum on Steel 0.45Copper on Steel 0.36Brass on Steel 0.40Plastic on Steel 0.2<strong>Linear</strong> Bearings 0.001L I N E A R P O S I T I O N E R SMechanism Effici<strong>en</strong>ciesLead Screw (Bronze Nut) 0.4Lead Screw (Plastic Nut) 0.5Ball Screw 0.9Helical Gear 0.7Spur Gear 0.6Timing Belt/Pulley 0.9Temperature°F = (1.8 x °C) + 32°C = 0.555 (°F - 32)Gravity(Acceleration Constant)g = 386 in/s 2 = 32.2 ft/s 2 = 9.8 m/s 2NEMA Standard Motor Dim<strong>en</strong>sionsNEMA NEMA NEMA NEMADim<strong>en</strong>sion (in) 17 23 34 42“A” Motor Shaft Diameter 0.197 0.250 0.375 0.625“B” Motor Shaft L<strong>en</strong>gth* 0.945 0.810 1.250 1.380“C” Pilot Diameter 0.866 1.500 2.875 2.186“D” Pilot L<strong>en</strong>gth* 0.080 0.062 0.062 0.062“E” Mounting Bolt Circle 1.725 2.625 3.875 4.950“F” Bolt Hole Size 0.127 0.195 0.218 0.218* These dim<strong>en</strong>sions can be less than value indicated.ØA +0.0000 [0.0]- 0.0005 [0.0]ØCØF Hole (4x)Equally Spacedon a "E" Dia B.C.BDwww.kollmorg<strong>en</strong>.com103
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