KHK Stock Gears 3013
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220SpurGearsHelicalGearsInternalGearsRacksCP Racks& PinionsMiterGearsBevelGearsScrewGearsWormGear PairBevelGearboxesOtherProducts[Caution on Secondary Operations]① Please read “Caution on Performing Secondary Operations” (Page 192) when performing modifications and/or second-ary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.Ground Helical RacksModule 1~3KRHG・KRHGF・KRHGFDSpecificationsPrecision gradeKHK R 001 grade 1 *Referencesection of gearRotating planeGear teethStandard full depthTransversepressure angle20°Helix angle21°30'MaterialSCM440Heat treatment Thermal refining onlyTooth hardness225~285HBCatalog No.ModuleEffectiveno. of teethDirectionof helixShapeTotal lengthFace widthHeightHeight to pitch lineAllowable force (N)Allowable force (kgf)ABCDBending strengthSurface durabilityBending strengthSurface durabilityKRHG1-100RKRHG1-100Lm128RLRRRL98815141290955 131 97.4 KRHG1.5-100RKRHG1.5-100Lm1.519RLRRRL101122018.528902380 295 243 KRHG2-100RKRHG2-100Lm213RLRRRL9816252351404230524 432 KRHG2.5-100RKRHG2.5-100Lm2.510RLRRRL100203027.580306610819 674 KRHG3-100RKRHG3-100Lm38RLRRRL10225353212000981012301000 Catalog No.ModuleNo. of teethDirectionof helixShapeTotal lengthFace widthHeightHeight to pitch lineAllowable force (N)AA'BCDBending strengthSurface durabilityKRHGF1-500RKRHGF1-500Lm1159RLRFRRFL499.51502.66815141290955 KRHGF1.5-500RKRHGF1.5-500Lm1.5106RLRFRRFL499.51504.23122018.528902380 KRHGF2-1000RKRHGF2-1000Lm2160RLRFRRFL1005.311011.6116252351404230KRHGF2.5-1000RKRHGF2.5-1000Lm2.5128RLRFRRFL1005.311013.19203027.580306610KRHGF3-1000RKRHGF3-1000Lm3106RLRFRRFL999.031008.88253532120009810[Caution on Product Characteristics]① The allowable forces shown in the table are the calculated values according to the assumed usage conditions. Please see Page 189 for more details.② The backlash of racks differ depending on the size of the mating pinion. Please calculate the backlash from the backlash value of the mating pinion. Also, please refer to the data in the section called 'Backlash of Rack Tooth (Amount of Tooth Thinning)' on Page 191.③ Please use KHG Ground Helical Gears as the mating pinion.④ These racks produce axial thrust forces. See page 167 for more details.ABCDGGGGG21°30’SWSWRR*SW Saw Blade FinishedCatalog No.● : J Series (Available-on-request)ModuleNo. of teethDirectionof helixShapeTotal lengthFace widthHeightHeight to pitch lineMounting hole dimensionsNo. ofmounting holesAA'BCDEFG•KRHGFD1-500RJ•KRHGFD1-500LJm1159RLRDRRDL499.51502.6681514624.761504•KRHGFD1.5-500RJ•KRHGFD1.5-500LJm1.5106RLRDRRDL499.51504.23122018.5824.761504•KRHGFD2-1000RJ•KRHGFD2-1000LJm2160RLRDRRDL1005.311011.611625231052.651806•KRHGFD2.5-1000RJ•KRHGFD2.5-1000LJm2.5128RLRDRRDL1005.311013.19203027.51252.651806•KRHGFD3-1000RJ•KRHGFD3-1000LJm3106RLRDRRDL999.031008.882535321449.511806* The precision grade of J Series products is equivalent to the value shown in the table.

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