KHK Stock Gears 3013
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312SpurGearsHelicalGearsInternalGearsRacksCP Racks& PinionsMiterGearsBevelGearsScrewGearsWormGear PairBevelGearboxesOtherProductsPlastic Bevel GearsModule 1~3PBSpecificationsPrecision gradeJIS B 1704 : 1978 grade 4*Gear teethGleasonPressure angle20°MaterialMC901Heat treatment ―Tooth hardness(115~120HRR)KABCDEFGHIJB3Catalog No.Gear ratioModuleNo. of teethShapeBoreHub dia.Pitch dia.Outside dia.Mounting distanceTotal lengthCrown to back lengthHub widthABCDEFGHPB1.5-3020PB1.5-20301.5m1.53020B4B31083025453046.2433.13283318.5318.6313.9311.5488.83PB2-3020PB2-2030m23020B4B310103535604061.6544.18404526.8725.0621.2416.391513.33PB2.5-3020PB2.5-2030m2.53020B4B315124540755077.0755.22505534.2231.0626.5519.241814.16PB3-3020PB3-2030m33020B4B315156050906092.4866.27557035.5640.4826.8627.091721.66PB1-4020PB1-20402m14020B4B3862516402040.5922.41222815.0713.7812.598.687PB1.25-4020PB1.25-2040m1.254020B4B31083222502550.7328.01273618.5418.6615.2311.751010.25PB1.5-4020PB1.5-2040m1.54020B4B31083825603060.8833.61354625.0125.5420.8816.91514.75PB2-4020PB2-2040m24020B4B312124032804081.1744.81456032.3734.1626.1721.21818PB2.5-4020PB2.5-2040m2.54020B4B31512504010050101.4756.01557539.7343.7831.4726.52022.5PB3-4020PB3-2040m34020B4B32016605012060121.7667.22659045.8550.8136.7631.82427.5PB1.5-4515PB1.5-15453m1.54515B4B3108401867.522.568.0626.54284720.4423.2017.5913.921112.5PB2-4515PB2-1545m24515B4B312106024903090.7535.35406030.429.826.1215.891714PB2.5-4515PB2.5-1545m2.54515B4B315126030112.537.5113.4344.18507538.3538.4132.6519.862217.5PB3-4515PB3-1545m34515B4B32015803813545136.1253.02559040.7445.1734.1823.842021.33[Caution on Product Characteristics]① Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon gears), including bore size (H8 when pro-duced), tooth diameter, and backlash. Please see the section “Design of Plastic Gears” in separate technical reference book. (Page 101).② The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 283 for more details.③ Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.④ Without lubrication, using plastic gears in pairs may generate heat and dilation. It is recommended to mate them with steel gears.*The precision grade of this product is equivalent to the value shown in the table.*For products not categorized in our KHK Stock Gear series, custom gear production services with short lead times is available. For details see Page 8.

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