Red & Black 80W CO2 - Stepper Motor Replacement Options

[shenbiand4]

Hi all,

I’m looking to replace the below stepper motor. I saw on this post 2 there were gear mods required. I’m hoping to find a direct plug and play and have found three very close matches. (CW-Motor do not sell the original any longer).

https://www.oyostepper.it/goods-73-Motore-passo-passo-Nema-23-bipolare-18-gradi-126-Nm-28-A-25-V-57x57x56-mm-4-fili.html

https://www.oyostepper.it/goods-1159-E-Series-Nema-23-Motore-passo-passo-bipolare-2-fasi-18-gradi-4-fili-126-Nm-28-A.html

https://www.skysmotor.co.uk/goods-2350-Nema-23-Stepper-Motor-23HS22-2804S1-25V-126Nm-4-Wires-Φ6mm-Shaft.html

I’m struggling to come to a conclusion on which would be most suitable having come to my limit of smarts with this kind of thing…

Any pointers would be greatly appreciated.

The dimensions and amperage etc are as close as I can find.

This is mine:

[o_lampe]

@shenbiand4 I found a thread about your motor on lightburn-forum.
The only confusing info about a replacement motor was the required shaft diameter.
Make sure, you measure your motors shaft, before you buy. NEMA23 steppers can be found with 5 ,6, 8, 10mm shaft and also 1/4 or 3/8 inch shaft.
If you pick the wrong one, you'll have to look for the right pulley for your belt.
All other requirements are pretty common, like 1.8 degree, 4-wire, 2.8A and 56mm motor length as you've already noted. Can't go wrong there.

The Oyo motors you've linked are almost identical, except for the D-shaft and wire length. I'd go for D-shaft, if I had to choose.