Previous in Forum: Taper Roller Bearings - Standard Distance   Next in Forum: Allowable Stress under ASME UG 23
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
6 comments
Rate Comments: Nested
staggersandfalls
Associate

Join Date: Mar 2009
Posts: 45

Gear Tooth Size

03/10/2009 8:26 AM

considering gears (rack and pinion) I know the modules need to be the same and that the module is pitch diameter/number of teeth, but how is the actual height of the teeth determined. Any comments appreciated.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
2
sb
Guru

Join Date: Mar 2007
Posts: 2550
Good Answers: 103
#1

Re: Gear Tooth Size

03/10/2009 9:17 AM

These are available in any of the gear design standards/ handbooks and even on net.

http://www.tech.plymouth.ac.uk/sme/desnotes/gears/nomen1.htm

http://www.roymech.co.uk/Useful_Tables/Drive/Gears.html

http://www.pic-design.com/tech/gear_form/gear_form1.htm

etc

However it is advisable to follow the corresponding AGMA/ ISO standards where these are defined.

__________________
 Fantastic ideas for a Fantastic World, I make the illogical logical.They put me in cars,they put me in yer tv.They put me in stereos and those little radios you stick in your ears.They even put me in watches, they have teeny gremlins for your watches
Register to Reply Good Answer (Score 2)
No more Good Answers.
staggersandfalls
Associate

Join Date: Mar 2009
Posts: 45
#2
In reply to #1

Re: Gear Tooth Size

03/10/2009 9:43 AM

Thanks guru,

plenty to go at there!
Register to Reply Off Topic (Score 5)
agung jelantik
Associate
Indonesia - Member - Practice Engineering Fields - Mechanical Engineering - Practice

Join Date: Feb 2009
Location: INDONESIA
Posts: 30
#3

Re: Gear Tooth Size

03/11/2009 1:46 AM

FYI : The basic dimensional is there available in Turbomachineery Handbook.

__________________
 " PRACTICE MAKES PERFECT" by : MK. Gandhi
Register to Reply
staggersandfalls
Associate

Join Date: Mar 2009
Posts: 45
#4
In reply to #3

Re: Gear Tooth Size

03/12/2009 5:14 AM

Thanks for that.
Register to Reply Off Topic (Score 5)
Dr Sunil K Somani
Participant

Join Date: Mar 2009
Posts: 4
#5

Re: Gear Tooth Size

03/12/2009 6:49 AM

For simple spur/rack gears it is addendum + dedendum. Usually addendum is taken as equal to module and dedendum is taken as 1.157 (for 14.5 pressure angle) or 1.25 (for 20 and higher pressure angle) times module. Hence total is 2.157*module / 2.25*module.
Register to Reply
staggersandfalls
Associate

Join Date: Mar 2009
Posts: 45
#6
In reply to #5

Re: Gear Tooth Size

03/12/2009 2:55 PM

Many thanks these have been really helpful comments. I shall stick with this site for any future assistance. Hopefully when I've finished my qualification, I can make some contribution.
Register to Reply Off Topic (Score 5)
Register to Reply
Have a Different Question?
6 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

agung jelantik (1); Dr Sunil K Somani (1); sb (1); staggersandfalls (3)

Previous in Forum: Taper Roller Bearings - Standard Distance   Next in Forum: Allowable Stress under ASME UG 23
You might be interested in: Rack and Pinion Drives, Rack and Pinion Gears, Gears

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (89 right now)
Show Members
Advertisement