<!-- from fixya rte -->How do I install the plastic gear - Magic Bullet Nutribullet Blender

The screws are hidden underneath the feet, and they just pull out. This video shows complete disassembly.

https://www.youtube.com/watch?v=wJ0by1BYRt4

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http://kitchen.manualsonline.com/manuals/mfg/ge_appliances/169106.html
contact the dealer to order the parts you want by partsnumber ref.

-I don't think they carry any replacement parts for Ninja Blender.
-Possibly not the spline plastic.
-Inside on top of the motor there is a planetary gear there. Possibly worn out or lose screws as well that not hold it in place to mesh together.
-But before you can reach to these parts you have to take the bottom cover off, remove the plastic spindle. IT's very tight.

Good luck

Mai

Sounds like the gear is stripped inside

Hope you have solved your problem by now, but put a flathead screw driver in the bottom of the blender to hold the blender shaft in place then turn the gear by hand or with a plyers and it should just screw off, it is reverse threaded...

great stuff

Some of these have a retaining "C" clip that keeps the shaft in place... others are just molded... once those are chewed up, you have to replace the assembly.

I did the same thing. Order parts at thegourmetdepotco.com -- This problem is caused when you put the rubber gasket underneath the blade instead of above it. This causes two problems: 1. It lifts the teeth on the jar away from the teeth on the drive gear, which can grind down and break off the teeth, and 2. If the drive gear contacts the rubber gasket, it will melt the rim of the drive gear. In the future, to reassemble the jar after cleaning, first put the rubber gasket on the jar, then the blade, lastly screw on the base ring.

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Hi, yuo may ask for the answer of parts needed.