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

Gearmotor Clutch to protect output gear

Gearmotor Clutch to protect output gear

Gearmotor Clutch to protect output gear

Any suggestions for a simple clutch to protect an output gear from self destruction? A gearmotor can generate 2-3 times the published stall torque depending on the dynamics of the system.

RE: Gearmotor Clutch to protect output gear

Additional info: 0.5-1.0 HP
Application: automotive, comm'l

RE: Gearmotor Clutch to protect output gear

Why not put a limit switch on the
output of the motor?  Is it hydraulic,
electric or ?  I think this would be
a cheaper solution.

RE: Gearmotor Clutch to protect output gear

My preference is limit switches in this electrical actuator, but the customer sometimes dictates the config. Another approach is a current limiter, which creates high resistance at overload. Upon removing the voltage, the current limiter quickly resets. The current limiter is not an option here because there is one already: slow acting and rated at high current.

RE: Gearmotor Clutch to protect output gear

The following designs went to production:

- Gear on shaft with collar; belleville spring behind it with adj nut. A little complex but compact.

- A one way ratchet clutch made from plastic. The tapered fingers were acetal. A two way clutch could be made the same way by changing 90 deg stops to 45 deg.

- USA Tolerance Rings (dot com) is showing a tolerance ring for limited slip gears on shafts. The mfr says that it has to be developed on an individual basis.

Any other ideas for simple clutches?

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