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involute profile for a gear

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konduri

Mechanical
Mar 5, 2004
19
US
I need involute tooth profile for the following gear:
pitch dia. .25
number of teeth 12
pressure angle 20 deg.

Is it going to be a modified spur gear or standard gear? I greatly appreciate help from the forum.

Thank you

Ramesh
 
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For certain it would be a modified
profile unless you do not mind having
an undercut. To furnish a profile,
the meshing gear would have to be
specified to ensure that the fillet
radius allows enough clearance to
not interfere with its meshing member.
I assume these are not generated but
cut with a laser if I remember your
application correctly.
 
Thanks Diamondjim,

You helped me last time. These gears are plastic injection molded gears. Mating gear is
pitch dia 1.25
no. of teeth 60
pressure angle 20
standard spur
actual center distance .7612
theoritical center distance .750


Would you please let me know this information is sufficient for pinion gear profile.

Regards,
Ramesh
 
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