Core Engineering - A gear pump uses the meshing of gears to pump fluid by displacement. They are one of the most common types of pumps for hydraulic fluid power applications. The
Gear Pumps | Powder Metal Applications | VisionQCI.com
Oil Pump Gear Pump GC Series GC-13 | KOSHIN LTD.
Green Mechanic: Gear Pump: Working, Types, Application, Advantages and Disadvantages
Useful information on External Gear Pumps
Gear Pumps vs Diaphragm Pumps for Metering Applications - Edelmann & Associates
Gear Pumps | PSG
Gear pump - Wikipedia
Gear pump - Wikipedia
HYDRAULIC GEAR PUMPS galore!
Meter-Flo® Electric Pump, 492 cc/min (30 cu in/min) @ 1725 rpm, NPT Ports, CCW