Do you know the classification of gear and rack

Thegearrackisusuallyusedtogetherwiththesliderail,anditsusehasplayedaveryimportantrole.Doyouknowtheclassificationofgearrack?Thefollowingisforyoutoanswer:

Itsclassificationcanbedividedaccordingtotoothshape,toothlineshape,gearshape,toothsurface,manufacturingmethod,etc;Theyalsohaveotherclassifications,suchas:

*Accordingtotoothshape,theyareclassifiedas:toothheight,deflection,forceangle,toothprofilecurve,etc

*Accordingtotheshapeoftoothline,thegearsareclassifiedasgear,curve,herringbone,helicalgear,etc

*Accordingtotheshape,thegearsare:rack,bevelgear,cylindrical,worm-wormgear,non-circulargear,etc

*Classifiedaccordingtothesurface:internalgearandexternalgear

*Classifiedbymanufacturingmethods:cutting,casting,rolling,sintering,etc

*Themaincategoriesofrackare:straightrackanddiagonalrack

Note:

*Thetoothrootcircleislargerthanthetopcircleoftheinternalgeartooth,whilethetoothrootcircleissmallerthanthetopcircleoftheexternalgeartooth

*Itisnotallowedtousewithstraightcylindricalgearandhelicalcylindricalgear

*isastraightracktoothprofile,notaninvolutetoothprofile.Forthetoothsurface,itisplanar,whichisequivalenttotheradiusoftheindexingcircleofthequality-basedlargecylindricalgear