Need help designing keyway in gear

[Paul Copioli]

Let me tell you about that "green Loctite" Andy talked about. It is Loctite 680 and is meant to carry significant loads. FANUC Robotics uses it on some of our paint robot's gear to shaft interfaces. If applied properly, it is meant to be permanent and is awesome. You can, however, remove the pieces by applying heat to the components (a heat gun works best). We have used Loctite 680 on our robot in the past where we just couldn't get a key or some other locking mechanism.

-Paul

[sanddrag]

Can we use it on the OD of a bearing instead of pressing in the bearing?

[Andy Brockway]

Originally Posted by sanddrag

Can we use it on the OD of a bearing instead of pressing in the bearing?

Dave,

Yes you can. As Paul said, it will take some heat to get it back out so make sure it is positioned properly before the glue sets.

[Rob]

If you are still worried about the depth of the 1/8" keyway, and are not concerned about the strenth of the shaft, you could put the 3/32" keyway in twice 180 degrees apart.

Rob