A Gear Pump is a simple pump that uses two gears meshing together. When the shaft turns, the gears pull oil in from the inlet, carry it between their teeth, then push it out the outlet. We use it where we need a steady flow at low to medium pressure. It is quiet and easy to maintain. If it leaks or wears, we swap in new gears or seals. Simple but reliable, like the first pump anyone learns about.