I did not know that Suntour made a cassette hub.
I once had a Shimano Cassette hub 27" wheel, and someone asked me to sell it to him, which I did because the price was right and the cassette was not compatible with any of my freewheels.
I assume what the OP is asking is; is the Suntour Cassette freehub compatible with the Shimano Cassette freehub?
i.e.- Will the splines on the freehub line up with the notches on the cogs?
I don''t know, but I thought I'd try to clarify the question.
Does anyone know?
PS- Cassette freehubs can carry more weight than a conventional freewheel because the bearings are closer to the axle dropout on the right hand side.