Twin-screw compressors are popular

  Twin-screw compressors are popular thanks to their quiet operation and ability to deliver a continuous supply of a compressed medium. Compared to reciprocating piston units, twin-screw compressors are more reliable and energy-efficient, making them less expensive to operate. Used to supply high-pressure air for many applications, twin screw air compressors feature two meshing rotors turning in opposite directions inside a housing. Whether the twin-screw compressor type is dry-running or oil-flooded, the bearings operating within must support rotor loads and help ensure accurate radial and axial rotor positioning. To help improve energy efficiency, the bearing arrangements must enable tight rotor head clearance. And they must do so reliably, often at high speed, with low friction, low noise generation and high running accuracy. The principle for a rotating displacement compressor in twin screw form was developed during the 1930s when a rotating compressor with a high flow rate and st