OK, it is a rotary cutter. The only ID on the thing is "AGMO R45-312" cast into the gearbox housing. I read somewhere that Howse used these gearboxes. There are no other stampings, decals, or other markings anywhere on the deck. This thing is old, I inherited it along with the TO 20 and some other old, worn out implements from my late father in law.
The order of assembly is what john in la said, sorta. The bearing is pressed into the housing and held into the housing with a large snap ring on top of the bearing's outer race. Then a snap ring is installed on to the middle of the input shaft (Part E45 in John's drawing) the gear is slid on to the shaft (not pressed, it just slides on). The shaft/gear assembly is then pressed through the bearing and housing, and a snap ring is installed on the shaft to hold it all together (the other part E45).
The pictures showed a trial fitting of the assembly, not the way it's put together as a final assembly. When I took it apart, I found 1/2 of a snap ring laying in the housing with the other half stuck on the input shaft behind the front snap ring. It was apparently there to take up the space between the inner bearing race and the snap ring that holds the assembly together.
And that's why I have the questions that I have, should there be a spacer on the shaft between the bearing race and snap ring, or should the spacer go between the rear snap ring and the gear?
Looking at John's diagram, I believe part E44 is the spacer, now I just hope I can get someone at Howse to answer the phone so I can order it.
Thanks for the help, sorry for the long-winded post.
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