I can always trust SweepScrub to have the part I need at a great price.
SweepScrub's SS1500 Burnisher 1500 RPM floor polishing burnisher is powered by a 1.5 HP DC rectified electric motor with handle mounted circuit breaker and is well-balanced for ease of handling. The large, non-marking transport wheels help get the machine from storage to job site without difficulty. Storage is also a piece of cake with the fold up handle, with the release being right on the handle. It conveniently folds away for your tighter storage spots.