Inverter driving surface grinder

I am considering using a VFD to run my surface grinder from single phase.
It currently has a step pulley arrangement to allow speed changes for
different wheel sizes. The VFD would allow me to replace the V-belt with a
multi-groove flat belt. This would reduce belt vibration and eliminate
manual speed changes. The belt is a PITA to get to.

Would the VFD introduce vibration at the wheel, thus negating the value of a
better belt system?

Doug

PS: automationdirect now has fractional hp inverters that run on 120V single
phase input and they are dirt cheap.