Since SpaceClaim is a direct modelling software, i'm not sure where to start.
For a volute volume, I recommend constructing individual sections and using the loft tool (the Blend mode of Pull) to construct the surface.
I wrote an add-in to make gears in SpaceClaim. You can see some of the results here: 11 Gear Mobius Strip v2 Public
It also makes spur and bevel gears. The source is here: https://github.com/bcourter/SpaceClaim-AddIns
If you don't have Visual Studio, I can make the binaries available.
Thanks Mr Courter, but what I needed was Volute Casing that we use in aerospace Industries not volute gear.