65310 F1000 71 : CYLINDER ASSY, LIFT, LH CORE providing stable output flow despite providing stable output flow despite fluctuations in pressure and or viscosity Precision engineered with accurate finishing for high accuracy Parts may be designed to be interchangeable for easier maintenance and repairs Constructed with carefully selected materials and heat treatment for long durability Design and Operation: Operates on the "gear within a gear" principle common to internal gear pumps Consists of a rotor gear (larger exterior driven gear) and an idler gear (smaller interior gear) Creating a low pressure zone at the suction port 54mm ( 1 15 16" ) Width 37 65310 F1000 71 : CYLINDER ASSY