Huskyvacs - Numatic & Henry vacuums USED to use Panasonic motors. That was from late 90's to about 2010 or so. Then in the last 15 years, they switched to Ametek Italia 4.3" diameter single stage motors in the Henry canisters. The exception being the Henry & Hetty HVR200 canisters, those use a double stage 5.7" diameter Ametek Italia motor. And I do believe the Numatic commercial canisters may also use the double stage motor too, but not absolutely certain on that.
Those Panasonic motors, while powerful, are NOT very high quality or long lasting - it's very common to see the bearings gone in them around 7 or 8 years. And they are non-serviceable motors. If you had a vacuum with a blown Panasonic motor, this would definitely be a reason to put a different brand motor in it!
As a side note, the double stage Ametek Italia motor makes a perfect TriStar/Airstorm/Patriot replacement motor. It's exactly the same dimensions as the Ametek 116311 double stage motor, but a bit more powerful at 100" waterlift. I used one to give my Vita Vac a bit of a performance boost and it definitely was what it needed LOL!