×
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!
  • Students Click Here

*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

Jobs

Fan Shaft Braking Device

Fan Shaft Braking Device

Fan Shaft Braking Device

(OP)
This design involves adding Differential Holdback Band Brakes on 4" Steel SAE 1040 Shafts in which three high-strength A490 bolts will be used to attach a 3/4" thick, 8" Diameter steel plate to the non-drive side of the shafts instead of a coupling because only about 1/4" of shaft emerges from the bearing.  An 8" Shaft extension with keyway will be welded to an identical steel plate in the Machine Shop, and will then be bolted to the other plate at the site. Band Brake gets mounted on Plate and keyed to the Shaft Extension. All bolts will be "Loctite in place". The question is will tapping and threading 1 1/4" long and 1/2" Diameter holes into a 4" Steel Shaft causes cracks to form and propagate into the shaft over time at the location of the bearing or will the shaft experience an unacceptable rise in stress from the drill and tap?
Thanks!
Coss

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