KHK Stock Gears 3013
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128SpurGearsHelicalGearsInternalGearsRacksCP Racks& PinionsMiterGearsBevelGearsScrewGearsWormGear PairBevelGearboxesOtherProducts128SpurGearsHelicalGearsInternalGearsRacksCP Racks& PinionsMiterGearsBevelGearsScrewGearsWormGear PairBevelGearboxesOtherProductsEFBCDGHAMC602STS45CS1Plastic Spur Gears with Steel CoreNSU23457102030405070005000400030002000100023457102030405020304050701002003004005007001000■ Denition of Holding Strength and Safety Factor① The holding strength between the metal core and the molded material is a function of the contact area. The relationship between the core outside diameter and the radial strength (torque) is shown on the left, while the relationship between the core diameter and the resis-tant thrust force is shown on the right.Radial Strength(Kfg.m per cm of Contact Surface Width)■ Relationship between radial strength and core diameterCore O.D.(cm)■ Relationship between resistant thrust force and core diameterResistant Thrust Force (Kgf. Per cm of Contact Surface Width)Core O.D.(cm)Catalog No.No. of teethShapeBoreHub dia.Pitch dia.Outside dia.Metal core dia.Allowable torque (N·m)Allowable torque (kgf·m)BacklashWeightAH7BCDHBending strengthBending strength(mm)(kg)*The precision grade of J Series products is equivalent to the value shown in the table.[Caution on Secondary Operations]① Please read “Caution on Performing Secondary Operations” (Page 32) when performing modifications and/or secondary operations for safety con-cerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.② Even though the holding strength at the material interface is designed to be stronger than the teeth, a secondary operation may weaken the holding strength.③ Plastic gears are susceptible to the effects of temperature and moisture. Dimensional changes may occur while performing secondary operations and during post-machining operations.[Caution on Product Characteristics]① Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon gears), teeth diameter and backlash.    Please see the section “Design of Plastic Gears” in separate technical reference book.②The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Page 31 for more details.③ When the core O.D is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear.④Without lubrication, using plastic gears in pairs may generate heat and dilation. It is recommended to mate them with steel gears.⑤The 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.NSU1-3030S18203032201.23 0.13 0~0.340.046 NSU1-3232223234221.34 0.14 0.057 NSU1-3434253436251.44 0.15 0.074 NSU1-3535253537251.50 0.15 0.075 NSU1-3636253638251.56 0.16 0.076 NSU1-404010254042281.78 0.18 0.082 NSU1-4545304547342.06 0.21 0.12 NSU1-4848304850342.23 0.23 0.13 NSU1-5050305052342.35 0.24 0.13 NSU1-6060406062452.93 0.30 0~0.360.23 NSU1-7070407072453.46 0.35 0.24 NSU1-80808082454.00 0.41 0.25 NSU1-90909092554.56 0.46 0.32 NSU1-100100100102655.12 0.520.40 SpecificationsPrecision gradeJIS grade N9 (JIS B1702-1: 1998)*JIS grade 5 (JIS B1702: 1976) Gear teethStandard full depthPressure angle20°MaterialMC602ST with S45C coreHeat treatment ―Tooth hardness(115~120HRR)Face width (E)10Hub width (F)10Total length (G)20Screw offset (J)5Module 1

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