I was hopeing some one might be abel to tell me what new stepper motors i need for a Denford triac so i can up date it all iv got the machine all ready and now need to make a start on my shoping list. is the link below a good start on what i need will they fit in the hole? Sorry to be green this is my first step in to this

http://www.motioncontrolproducts.co....&products_id=8