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Topic: Replacing an Electric Motor
Message: Posted by: Peter McMillan (Feb 17, 2014 07:33PM)
I have a band saw with a 2.5a 1/3 HP induction motor. It bogs down and I would like to replace the motor. Upgrading to a unit with a 1/2HP is a bit expensive and wondered if I could just replace the 1/3 with a 1/2.

Has anyone done this? Suggestions on making it work?

Message: Posted by: remote guy (Feb 17, 2014 08:32PM)
Hey Pete,

You can upgrade to a 1/2 HP motor. Just be sure the rpm's are the same. Your amp draw will go up with the new motor. It would be ideal if you could check with a amp meter to be sure you are not drawing more amperage than the data plate reads. If you have a variable pitch pulley on your existing motor the amps can be adjusted by adjusting the pulley.

Message: Posted by: remote guy (Feb 18, 2014 08:07AM)
Hey Pete,

I just realized you wrote "band saw". A band saw would not have a variable pitch pulley.
You should not have any problems with the amperage.

Message: Posted by: TheRaven (Feb 18, 2014 07:30PM)
Compare specs on new bandsaws with 1/2 vs 1/3 hp motors and see what else is different. Might give you some useful info.
Message: Posted by: Peter McMillan (Feb 18, 2014 08:20PM)
Good tips guys, that give me a good start. I'll start checking sources for the upgrade.

Message: Posted by: wa-na-be (Mar 6, 2014 08:39PM)
I would suggest you check out the rpm of the motor. If it is too fast it can throw the belt off the bandsaw wheels
Message: Posted by: Peter McMillan (Mar 6, 2014 09:00PM)
Will do Wa-na-be. Thank you.
Message: Posted by: Mr. Danny (Mar 6, 2014 09:19PM)
Go to Grangers and just tell them what you are wanting to do. They can look up your motor and also the new one and check for shaft size, motor base hole patern, etc. Should not be a big problem. Be sure to get all the info from the tag on the orginal motor.
Message: Posted by: Peter McMillan (Mar 6, 2014 09:46PM)
I'll check to see if we have a Grangers around St. George. Thanks.

Message: Posted by: Mr. Danny (Mar 13, 2014 11:59PM)
Your welcome, let us know how it goes.