Overrated Motor on an undersized reducer Application?

[CSCPE24]

Dear all,

I would like to find out what the consequence would be if I used a motor that has a higher HP on a reducer with a lower rated input HP. I've seen it being done before. What am I missing?

I'm currently trying to use a NEMA C-face, 3 phase, 3/4HP TEFC Induction Motor with a rated output torque of 3710 lb.in with a Reducer rated for an output torque of 1875 lb.in. It's rated input HP however is only 0.47 and output is 0.26.

What are the consequences of such a pairing other than the possibility of damaging the reducer with too much input HP even though the application would only be using at max, about 0.4 HP in reality?

Thanks in advance for any input into this.

 

[itsmoked]

Generally if your output load does not reflect back thru your reducer more than the reducer's limit then there shouldn't be a problem.

The motor only supplies the HP demanded. Don't demand more than the reducer rating and it won't hurt the reducer.

Of course the big problem is truly limiting the load.

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com