- In almost all cases the body is an aluminium alloy, in some cases cast iron.
- Bearings can be ball-ball or roller-ball according to their type of use.
- Pulleys are sintered, sheet metal or cast iron.
- Impellers come in sheet metal or stainless steel, brass, aluminium, cast-iron, or techno-polymers.
- Mechanical seals are produced with advanced materials such as silicon carbide.