Feature #1 -- The outer edges at the top of the cylinder are not stressed sections. A rounded edge is not a critical design feature for stress reduction.
 

• A slightly rounded edge is desirable  for appearance (0.25" radius)

Feature #2 -- The bearing pockets on the top and bottom sections of the cylinder are good candidates for reduced machining stock.

In the original welded design, extra stock was required for the two machining operations (rough and the finish) for each bearing pocket. With casting to near-net shape, the rough machining steps can be eliminated and only finish machining is required for the bearing pockets.

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