Hallmark Part lookup?

[NHCowboy]

Anyone have a way to find the specs on my Hallmark furnace part numbers? I have the manual but when it comes to the actual sizing of the Blower wheel I need... I just don't want to take it apart. Twice.
Furnace - LBD115
Blower - 110-10R
Fan - 710358
- I'm thinking Mars Motors - 41370 (12x12, CCW, Concave, 0.5 shaft)