Check the listing for details. Hydraulic Gear Pump Flat Keyed Shaft SAE Flange Mounting Mini High Pressure. Condition: New. Listed at 48.17 USD. Mini Hydraulic Gear Pump High Pressure Gear Pumps 0.8ml/r Aluminum Alloy 21MPa Advantages: High-strength aluminum alloy casing, alloy steel hard-face gear transmission. Using SP series gears. DU composite bearings and high performance sealing components Axial and radial clearance automatic compensation mechanism Use flange mounting and use a flat key input shaft connection. Benefits: High-strength aluminum alloy casing, light weight, alloy steel hard-face gear transmission, stable transmission; Adopting SP series gears, the fluctuation is small, the pressure is high, the noise is low, and the product performance is stable; DU composite bearing and high-performance sealing components, low starting torque, good sealing performance, strong anti-fouling ability, can work.