Whirlpool WP9703445 Stand Mixer Worm Gear Thrust Bearing OEM Part

This time I replaced the front and rear bearings and thrust bearing and all the gears. The hardest part is thoroughly cleaning out all the old grease. After re-greasing and assembly mixer ran like new. I wish a more robust worm gear was available. A snap ring plier is a must for this job.

I make a lot of bread doughs with my KitchenAid mixer, and it's used 2-3 times a week for large batches of dough. The gears began slipping, and I decided to take the mixer apart, and replace the worn gears. Replacing the transmission housings plastic cover, with the newer metal one will probably result in me not having to repeat this process, as the plastic one broke at the screw holes under pressure. I also replaced the worm gear, and the sleeve bearings.

My brother saw the parts on the counter when they came for dinner. Well that was it, he loves doing that kind of stuff so I said go for it. It was a Kitchen Aid professional mixer, it took him about 30 minutes to complete Works great was a lot easier then I thought it would be.

Watched videos available on APP's website, then ordered all necessary parts. Once parts arrived, just followed the videos again, step-by-step, to repair the mixer. I am NOT a "handyman", but with APP as my resource, I did it. Mixer running great now.

I had reassembled my 12 year old mixer after replacing the pinion gear and lower gear housing. When I tested the mixer, there was a rhythmic clicking noise. Upon closer examination, the worm gear showed wear. I ordered the thrust bearing and worm gear bearing because this assembly seemed loose in the housing when turning the motor by hand and the parts seemed worn. Once I replaced the front, rear and thrust bearing, I found that the main gear was still trying to bounce out of the housing. When turning the motor by hand, I found a spot where movement was "rough". I disassembled for the umpteenth time, and flossed between the teeth of the fine toothed gear. There was the tiniest of metal pieces stuck between two of the teeth. This was causing the bounce of the gear and a clicking noise when the mixer was running. Now the bounce is gone and the noise is gone as well. Success!