Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Small Planetary Gearset Inquiry

Small Planetary Gearset Inquiry

Small Planetary Gearset Inquiry

Does anyone know where to find some information regarding a really compact planetary gearset?  I need to reduce the speed by 6.6 factor. The shaft is 0.322" with two flats and the ring gear will be molded in with my part (approx. 1.25" ID).  I know it sounds extreme, but you never know unless you ask....

If this is not feasible, we'll go the VFD route and vary the freq. to control speed.  That comes with it's own issues....

RE: Small Planetary Gearset Inquiry

Your ring gear pitch diameter divided by the sun gear pitch diameter plus one is your planetary ratio, approximately.  Given your dimensions, you cannot get there from here.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close