Review on QT 2X Cross Blades Replacement Set with Gaskets for Magic Bullet 250W MB1001 Series Blender Part by Jason Cartwright

The base drive wheel was undamaged even after years of use with the original three flat and cross blade units. The new third-party devices looked very similar to the manufacturer's devices; but seemed harder. This was confirmed when using one of the new devices. A third party device was used 7 times on the original Magic Bullet base. For the first time, it made loud rubbing noises. I thought it was because it was new and needed to be broken in. The 2nd through 6th time went without incident, although the base seemed to be working a little harder. significant stress, and there were a lot of unusual sounds that changed in pitch when mixing the drink. When I removed the Cross Blade unit there was white powder on the underside where it connects to the base impeller. The base drive wheel was burned. Pieces of plastic were scattered in the base's drive bay. Either the shaft was not properly lubricated or it vibrated trying to turn, damaging the base drive gear. See pictures above. Manufacturer.