Compact, two-stage, external gear Pump designed for use at elevated pressures. Ideal for press-type applications requiring fast approach/retract speeds and slower peak actuator work speeds due to horsepower limitations or safety constraints. 1/2’’ Shafts use 404 woodruff key. 5/8’’ Shafts use 3/16’’ x 1’’ straight key. 4,000 RPM max. Maximum pressure 3,000 PSI.