KHK Stock Gears 3013
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168168SpurGearsHelicalGearsInternalGearsRacksCP Racks& PinionsMiterGearsBevelGearsScrewGearsWormGear PairBevelGearboxesOtherProductsGround Helical GearsKHGABCDGEFGGGGS1*The precision grade of J Series products is equivalent to the value shown in the table.Catalog No.No. of teethDirectionof helixShapeBoreHub dia.Pitch dia. Outside dia.Allowable torque (N·m)Allowable torque (kgf·m)Backlash(mm)Weight(kg)AH7BCDBending strengthSurface durabilityBending strengthSurface durabilityModule 1KHG1-20RKHG1-20L20RLS161720227.79 4.98 0.79 0.51 0.08~0.160.034KHG1-22RKHG1-22L22RLS181822248.92 6.14 0.91 0.63 0.08~0.160.037KHG1-24RKHG1-24L24RLS1820242610.1 7.43 1.03 0.76 0.08~0.160.046KHG1-25RKHG1-25L25RLS1820252710.7 8.12 1.09 0.83 0.08~0.160.048KHG1-28RKHG1-28L28RLS1820283012.4 10.4 1.27 1.06 0.08~0.160.056KHG1-30RKHG1-30L30RLS11025303213.6 12.1 1.39 1.23 0.08~0.160.072KHG1-32RKHG1-32L32RLS11025323413.5 12.6 1.37 1.29 0.08~0.160.078KHG1-35RKHG1-35L35RLS11025353715.1 15.4 1.54 1.57 0.08~0.160.088KHG1-36RKHG1-36L36RLS11025363815.7 16.3 1.60 1.67 0.08~0.160.091KHG1-40RKHG1-40L40RLS11030404217.9 20.5 1.83 2.10 0.08~0.160.120KHG1-44RKHG1-44L44RLS11030444620.2 25.3 2.06 2.58 0.08~0.160.140KHG1-45RKHG1-45L45RLS11030454720.7 26.5 2.12 2.71 0.08~0.160.140KHG1-48RKHG1-48L48RLS11030485022.5 30.5 2.29 3.11 0.08~0.160.160KHG1-50RKHG1-50L50RLS11235505223.6 33.3 2.41 3.40 0.08~0.160.180KHG1-60RKHG1-60L60RLS11240606229.3 49.4 2.99 5.04 0.10~0.180.260KHG1-70RKHG1-70L70RLS11240707235.2 68.9 3.58 7.02 0.10~0.180.320KHG1-80RKHG1-80L80RLS11550808241.0 91.8 4.18 9.36 0.10~0.180.440KHG1-90RKHG1-90L90RLS11550909246.9 118 4.78 12.1 0.10~0.180.530KHG1-100RKHG1-100L100RLS1155010010250.4 142 5.14 14.5 0.10~0.180.620[Caution on Product Characteristics]① The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 165 for more details.② The backlash values shown in the table are the theoretical values for the backlash in the normal direction of a pair of identical gears in mesh.③ These gears produce axial thrust forces. See Page 167 for more details.④ Right handed and left handed helical gears in the same module are designed to mesh as a pair, but KHG gears are not interchangeable with SH type helical gears.*Above is for illustration purposes only and differs from actual tooth forms. To find more details, please see the section “4.3 Helical Gears” in sepa-rate technical reference book (Page 22).Normal ModuleTransverse Module[Caution on Secondary Operations]① Please read “Caution on Performing Secondary Operations” (Page 166) when performing modifications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.② Due to the gear teeth being induction hardened, no secondary operations can be performed on tooth areas including the bottom land (approx. 2 to 3 mm).③ While cutting off the entire hub may cause curvature deformation by residual stress, some products are straightened and annealed after refining the material.SpecificationsPrecision gradeJIS grade N6 (JIS B1702-1: 1998)JIS grade 2 (JIS B1702: 1976) Referencesection of gearRotating planeGear teethStandard full depthTransversepressure angle20°Helix angle21°30'MaterialSCM440Heat treatment Thermal refinined, tooth surfaceinduction hardenedTooth hardness50~60HRCFace width (E) 8Hub width (F)10Total length (G)18Screw offset (J) 5

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