A gear pump performance curve reveals how flow, differential pressure, power, speed and oil viscosity shape real hydraulic pump output. See how slip affects efficiency, calculate operating demand and choose the best-fit pump for reliable performance.
A well-maintained hydraulic pump can last 10,000–20,000 hours, but pressure, speed, duty cycle, oil cleanliness and application change the result. Compare pump types, spot early wear, extend service life and decide when to repair, rebuild or replace.
A hydraulic pump converts mechanical input into oil flow, while system resistance allows pressure to develop. Learn how gear, vane, and piston pumps work, how flow and power are calculated, and what to check during pump selection and troubleshooting.
See how hydraulic systems turn pump flow into controlled force and motion. Learn what pressure, flow and piston area really do, how pumps, valves and actuators work together, and what common symptoms reveal about system performance under real loads.
Discover how hydraulic systems generate, control and transmit power. Learn the roles of pumps, motors, valves and circuits, key calculations, troubleshooting steps, safety practices, and how to select reliable replacement components for real duties.
Replacing a hydraulic pump or motor takes more than matching displacement. See how to verify the model code, flange, shaft, ports, pressure, rotation, circuit type and controls, then clean, align, prime and start safely without risking early failure.
Learn how to perform a case drain flow test on hydraulic pumps and motors, measure internal leakage and case pressure, avoid false readings, and compare results with OEM limits or baseline data before deciding whether to monitor, repair, or replace.
Open and closed hydraulic circuits suit different duty cycles. Learn how oil paths affect pump and motor selection, heat loss, charge flow, braking and cooling, with practical checks for valve-bank systems, cylinders and bidirectional drives at work.
Size a hydraulic motor from the load, not the catalog. See how torque, speed, displacement, flow, pressure and efficiency work together, with practical checks for starting, hot oil, gear ratios, fixed or variable designs, braking, overspeed and case pressure before choosing a motor for machine duty.
