Can I use Bread Flour instead of Bread Machine Flour when making a loaf of wheat bread? Recipe calls for 1 and 1/2 cups of wheat flour and 4 cups of bread machine flour.
"Bread machine flour" and "bread flour" are interchangeable terms.
Bread flour, sometimes called bread machine flour, is what most bread maker recipe books will say to use in order to achieve the best results. (Source)
So yes, you should use bread flour in the recipe. It has higher protein than all-purpose flour and will help your bread rise better and hold its shape.