The additional information is literally a chart with each motor size charted out… just because the frame matches, doesn’t mean anything else does and that is literally taken directly off the chart. The OP and I are replacing the same motor. The simple question to the OP who purchased this motor...
I looked up a NEMA electric motor chart from Baldor, and it’s showing a 184 is a 7/8” shaft, whereas a 184T is a 1 1/8” shaft. Link to the Baldor/NEMA page is below, column U. I suppose I can try to find another pulley if it’s not a direct replacement, but it appears OP just pulled their pulley...