Milex non-Rocket Blender

Milex Rocket Blender is a fragile little blender which you need to be so careful of “overloading” with one piece of banana too many. First a burnt rubber smell and black tears of who knows what in my smoothies, then a broken rubber gear. Got so ****ed at the smoothie maker I put it away for over a year then tried again with the second and last rubber gear, which, after a week of easy smoothies, also broke. What’s the deal here?