These bases are meant primarily for smaller motors ranging from large fractionals to approximately 20 horsepower. They feature a one-piece formed bottom plate and the Overly Hautz originated single or dual bolt adjustment with push-pull action.
Each one features substantial “Z” bar construction, continually welded into one rigid part. Dual positioning screws allow greater versatility in shaft alignment.
They incorporate special gussets and cross braces together with heavier materials which electric motor base provide superior strength characteristics essential to handle 
motors in the 3000 to 7000 pound weight class.
