Electrical power generators transform mechanical energy into electrical energy, typically for backup or emergency power. Generators can produce either AC or DC power and are typically powered by a fuel engine.
Gearboxes and gearheads are speed reducers that consist of a set of gears, shafts, and bearings in an enclosed housing. In converting inputs to outputs, they reduce RPM and increase torque.
Used and refurbished equipment suppliers specialize in used and refurbished equipment and instruments. Suppliers may have the personnel and/or equipment needed to completely overhaul or rebuild equipment or instruments.