WTB *used* 3/4 HP 1725rpm 1Ph 220V frame 56 motor with C flange

[calgaryguy]

Before I head over to princess auto and buy one, I'm curious if anyone has one of these motors laying around. Calgary area or close to it as shipping will kill me.

Here's a pic of one at princess auto:

https://www.princessauto.com/ccstore/v1/images/?source=/file/v8863944699778714457/products/8513541_A0CG_00_01.jpg

And before this post devolves into a "why do you need that?" or "why dont you make an adapter for a normal 56 frame" or some other well intentioned advice, I have a specific application for this motor that I'm looking at that is covered in the following thread

C

Thread 'Making an electric motor adapter for Nema 56C to a B5 D71 Flange'

Mar 2, 2025

Per the title, I need to make, or have made, a plate adapter to go from a NEMA 56C *inch fractional* frame electric motor housing flange to a B5 D71 *metric* flange. I dont think the Craftex lathe I have access to is a) has a chuck capable of spinning a flange this size, and the RF-30 mill I have access to is beat to shit and isnt very precise anymore, nor do I have a good/accurate way to index things like the bolt holes and spacings required

NEMA 56C drawing is attached for reference. Picture of a typical Leeson 56C attached as well.

The *KEY* dimensions from the attached 56C pdf...

• calgaryguy
• Replies: 13
• Forum: Looking for Answers? We're here to help!

• 

 

[Xyphota]

I might have one for you! I'll take a look when I get home.

 

[calgaryguy]

I might have one for you! I'll take a look when I get home.

Here's hoping you are local to Calgary! I just updated my ad with a Calgary-local request.

 

[Xyphota]

I am local to Calgary! So turns out it is a 3 phase 1 Hp motor, but I also have a VFD for it if you want to go that route? Both are brand new and unused. I originally purchased to increase the power of my myford lathe, but I think I'm going to leave it as is and get a bigger lathe at some point in the future. Both the motor and vfd are unused. I think the VFD accepts 120V and puts out 3 phase 220, but I need to double check.

The motor in question:

https://www.automationdirect.com/adc/shopping/catalog/motors/ac_motors/general_purpose_and_inverter_rated/mtrp-001-3bd18?_gl=1*1ftxg8y*_up*MQ..*_gs*MQ..&gclid=CjwKCAiArKW-BhAzEiwAZhWsIANA1TxZC_mOMcHroPfiwJXekhBnPUa3y-0swGbi8GRcxb8wyfkbsBoCftQQAvD_BwE

The VFD *I think* I purchased:

https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/general_purpose_vfds/gs21-11p0?_gl=1*2apwgs*_up*MQ..*_gs*MQ..&gclid=CjwKCAiArKW-BhAzEiwAZhWsIANA1TxZC_mOMcHroPfiwJXekhBnPUa3y-0swGbi8GRcxb8wyfkbsBoCftQQAvD_BwE

 

[calgaryguy]

thanks for replying!

I'll keep it in mind, but I'm really looking for a single phase motor. Theres a ton of linked electronics in the machine its going to go into which are all setup for single phase.