1 or 3 phase bench grinder

Thank you, this is information I didn’t know, very valid points. Sure appreciate it.
CluelessNewB said:
Three phase motors don't have starting caps or centrifugal switches. Unless they are abused the only parts that fail are bearings. So unless you need to move the grinder around to places where you don't have 3 phase or don't want to run your RPC, a 3 phase would be my choice. Should you someday decide you want variable speed a 3 phase motor would allow you to add a VFD for speed control.
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The benefits of 3 phase on a bench grinder are minimal, but I would not pay any more for one than an equivalent single phase. When it comes time to sell it, it's going to be a tough sell to get rid of the 3 phase , but the single phase will be easy to sell. I would pay more attention to the quality of the machine, especially the tool rests.
Randy
 
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