where can I get one of these CHEAP or can I substitute something that will work?

Question

I was replacing a small AC motor with a blade (Acme BB-700) and the compression ring went flying when trying to transfer the fan blade to the new motor and I have been unable to find it. Similar to this:

formatting link

The shaft is 3/16" but the ring is obviously larger and compresses the plastic of the notched fan blade once over the shaft like this:

formatting link

._SL1000_.jpg $6+ for one of these rings seems outlandish. Where can I find one at a far more reasonable price, or is there something else I can substitute to keep the blade on the shaft? Someone once suggested a small hose clamp, but another individual said that the side where the clamp is tightened, being unbalanced because it weighs more then the opposite side, over time would ruin the motor.

Thanks in advance.

Pappy · Accepted Answer

Will something like a Corbin clamp work?

Juan Bertinand · Answer

Thanks, I think that might be the answer!  In fact, these look almost identical to the one I shared except they have wings.  I doubt the small wings would unbalance anything.

Reinhard Zwirner · Answer

Pappy schrieb:[...]> Will something like a Corbin clamp work?As these parts are not rotationally symmetrical, could this result inan imbalance?PondersReinhard

Juan Bertinand · Answer

As a precaution, I can use a small dremel to cut off the protrusions so it will function exactly like the original part.

Jeff Liebermann · Answer

On Tue, 1 Jul 2025 04:19:43 -0700, Pappy    wrote:I use such hose clamps for fuel lines in small engines (chain saws andgasoline powered garden tools).  If I'm not certain about the size,the clamps are cheap enough that I usually buy an assortment.  Forexample:etc.  Notice that they come in both metric and imperial diameters.

ehsjr · Answer

If there is room, you could stack two of those with the tabs 180 degrees apart like this:

.....tab =====RRR|RRR=== .........tab

Ignore the ... (they're) for spacing RRR is the ring portion of the clamp.

That might be easier than dremeling the tabs off.

Whether its even worth considering the imbalance with a single Corbin clamp is debateable.

Ed

where can I get one of these CHEAP or can I substitute something that will work?

Join the Discussion

Didn't find your answer?