
precision gear & sprocket ratio : This program calculate teeth number of gears (chain wheels) which are needed for achievement required precision ratio (precision speed). This is necessary when we grinding damaged drive roll and must change gears (sprocket) set. (see picture and DEMO) 
change
gears for universal milling machine : This program calculate teeth number of four changeable
gears which are needed for manufacturing helical gears or helical flute on
universal milling machine. see milling
demo 
optimal gears (ask ?)
....calculate optimal addendum modification coefficient of tooth (helical
gears couple) , necessary especially when substitute inch
gears (DP) with metric gears (modulus) ( or
reverse) in the same housing,
or design planetary gears train, etc.. need help ? 
Precision gears & sprocket ratio gesdim@mt.net.mk This program calculate teeth number of four
gears (chain wheels for requirement precision
ratio . 
E.M.  electric motor with constant value of
n(rpm) n(°/min) number of revolution of E.M. Reducer v(m/min) track speed (technology fixed value) A,B,C,Dteeth number of gears (sprocket) D (mm)outside roll diameter ************* DEMO********** 

Change gears for universal milling machine gesdim@mt.net.mk 
This program calculate teeth number of four changing gears (A,B,C,D) from milling machine set; in this program are options, set with 21 gears. For another milling machine we must input set of changing gears, pitch of working shaft , constant worms ratio and machine table spindle pitch into the program. 
B*D/(A*C)= S/const  requirement gears
ratio const=k*hw (mm),(inch) milling constant k (in demo =40)  worms ratio hw (mm),(inch) machine table spindle pitch (in demo hw=1/4(inch) ...................................................... gears manufacturing : S=m*p*z/sinb (mm)axial pitch of gears S=p*z/DP*sinb (inch)axial pitch of gears m(mm) normal metric modulus of gears DP(1/inch) diametral pitch of gears z teeth number of gear b(degrees) helix angle of gear tooth helical flute manufacturing : S(mm),(inch) helical flute pitch * milling demo* 
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