INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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.

Jobs

Grooves on a gear

RE: Grooves on a gear

3
Those are identification markings (one groove, two grooves, three grooves, etc) indicating what application the gear is used for. Sometimes a basic production transmission design will use a slightly different gear set for specific applications, with variations in tooth geometry (pressure angle, addendum modification, etc) made to optimize efficiency, performance, fatigue life, etc. All of the gear variants might use the same number of teeth and have a very similar visual appearance, but each would only mesh properly with the correct mating gear.

The reason for using a series of grooves on the tooth top lands is because it provides a quick and fool-proof method to visually confirm the correct gears are being used. Back in the olden days, before the availability of laser marking systems, turning a set of grooves in the OD of the gear blank was a cheap way to permanently ID the part.

Here's a related link.

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!


Resources


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