about profile of a straight bevel gear
about profile of a straight bevel gear
(OP)
Hello, I got a simple question about straight bevel gear. Is the profile of a standard straight bevel gear an involute profile, if projected to the plane which is perpendicular to the cone surface? Please help. Thanks a lot.





RE: about profile of a straight bevel gear
Yes, a standard (involute) straight bevel gear tooth profile is essentially a standard spur gear tooth profile, if the section plane is normal to a line along the pitch cone surface.
Regards,
Terry
RE: about profile of a straight bevel gear
The profile is actually a simpler 'octiod' form.
This is because the line of action on a bevel crown & pinion pair is not the same straight line as a spur pair. The line of action actually resembles a figure 8.
The difference however, between the two profiles is small.
Ron Volmershausen
Brunkerville Engineering
Newcastle Australia
http://www.aussieweb.com.au/email.aspx?id=1194181
RE: about profile of a straight bevel gear
The reason I want to know if it is an involute profile is I will need to do some math calculation on the bevel gear geometry. So if bevel gear is also in involute profile, I can extend the calculation on spur/helical gear to bevel gear.
Or if anybody can kindly recommend a book or reference on calculating the tooth geometry of bevel gear, it would be great.
Again thanks.