PGF Internal Gear Pumps

The Bosch Rexroth PGF Internal Gear Pumps are fixed displacement units designed for a variety of industrial and mobile hydraulic applications. They work by using an internal gear mechanism with a small, driven inner gear and a larger, eccentrically mounted outer gear to create chambers that draw in and discharge hydraulic fluid. Their functions include the conversion of mechanical energy (torque and speed) into hydraulic energy (flow and pressure), providing a highly efficient and quiet flow source. Key features include low operating noise, low flow pulsation, and high efficiency due to advanced sealing gap compensation. They are often used as drives in the small and medium power range, such as in machine tools, and can be combined with other pump types to form multi-flow units.