Hydraulic Motors/

Hydraulic Gear Motor

A hydraulic gear motor converts hydraulic pressure into force that is able to generate a large amount of power. Hydraulic motors use moving fluids to create vacuum suction, creating enough power for several different functions at the same time; a single pump can power several different motors. Hydraulic motors are able to produce much more power than electric motors of the same size and for this reason are used for larger loads.

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AMETEK Technical & Industrial Products
Kent, OH
330-673-3452
AMETEK Technical & Industrial Products makes your choice easy when it comes to motor selection. With a wide variety in products, many different motor, drive and full system families are available in standard electric and hydraulic configurations. With Brushless DC Servo Motors, Automation Grade Brushless DC Servo Motors, Slotless Brushless DC Servo Motors and more, "Your choice is our commitment."
 
Engineered Sales, Inc.
Maryland Heights, MO
314-878-4500
Engineered Sales, Incorporated (ESI) is a leading industrial fluid power distributor and manufacturing facility specializing in hydraulic and pneumatic components and custom-designed fluid power systems. ESI hydraulic power units, motors, actuators and other products combine fluid power expertise with a vast selection of world-class components to provide you with unsurpassed system efficiency.
 
Wojanis Hydraulic Supply Company, Inc.
Pittsburgh, PA
800-345-9024
Wojanis Supply is a total fluid power facility encompassing sales, service, design and manufacturing capabilities for a full line of hydraulic motors, pumps, valves and integrated systems for a range of applications. Additionally, we are an authorized representative for many of the top hydraulic and pneumatic component manufacturers allowing us to fulfill your every hydraulic and pneumatic demand.
 
Helac Corporation
Enumclaw, WA
800-327-2589
A leader in the rotary actuation industry for over 40 years, Helac Corporation manufactures and supports helical, hydraulic rotary actuators and construction equipment attachments. Our streamlined product designs offer clients high torque, durability and bearing capacities. Helac continuously improves on quality and process efficiency to deliver only the best in hydraulic systems and power units.
 
Metro Hydraulic Jack Co.
Newark, NJ
800-633-8234
Metro Hydraulic Jack has been distributing pneumatic, hydraulic and mechanical equipment and tools since 1941. Our experience shows in our vast inventory of lubrication systems, hydraulic power units, lifts, hydraulic systems and other products as well as our quality machine and repair services for hydraulic pumps, motors and other equipment ensuring your every need is met at Metro Hydraulic Jack.
 
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Industry Information

Hydraulic Gear Motor

Hydraulic gear motors are one design of hydraulic motors, which are often part of a hydraulic drive system or hydraulic transmission along with hydraulic pumps and cylinders. The main enclosure and interior components are made from metal such as steel or iron so they can withstand high pressures and fast operating speeds. Hydraulic gear motors are a very common design of hydraulic motors and are widely used in aircraft, heavy duty vehicles, industrial lifting and in machinery that requires strong pressurized actions. Additionally, hydraulic motors are frequently used to power automated manufacturing systems. Hydraulic motors are also used in trenchers, automobiles, construction equipment, drives for marine winches, waste management and recycling processes, wheel motors for military vehicles, self-driven cranes, excavators, forestry, agriculture, conveyor and auger systems, dredging and industrial processing.

Hydraulic motors are fairly simple machines that are composed of a reservoir, a pump and rotating machinery. The pump is connected by a line to a motor that draws the fluid, which is usually oil or water, from a reservoir and into the motor. The fluid forces motion by the moveable parts of the motor as it rotates. The rotation of the motor turns a coupled shaft which provides mechanical motion; the motor serves as the actuator that converts the pressure of the fluid into torque and rotational energy. The fluid is discharged, filtered and reused. Hydraulic gear motors have meshed gears inside the motor; oil is pumped into this gear box to exert force on the gears which causes them to rotate and generate energy. Hydraulic gear motors are the least expensive and have the ability to operate at high speeds. However, they are also the noisiest of the hydraulic motors and are relatively inefficient at low speeds. Besides gear motors, there are vane and piston type hydraulic motors. Vane motors have small parts that slide in and out of slots in a rotating wheel. Piston type motors have a pair of pistons distanced apart by tubing filled with hydraulic fluid. When a piston moves, the next piston will also move as a result of the incompressible hydraulic fluid. The hydraulic fluid transfers the pressure from the first piston, plus the built up pressure in the fluid to the next piston.