They have a shorter life. They improve machine productivity. They allow
the connection of a diesel engine to a drive pump, compressor, or fan,
with the input engine speed to be changed to different output speed for
the connection. They offer greater rigidity and accuracy. The increasers
are equipped with hardened and ground steel gears that minimize noise
and vibration. They require special care in design and manufacturing. They often involve high speeds that may create problems in gear dynamics. Also, frictional and drag forces are magnified.
