External gear motors
Different types of hydraulic motors

What is an external gear motor and why do you need it?

Gear motors and axial piston motors are high speed motors. If your operation requires a lower speed, you can reduce the output speed of the shaft by using gears. The operating pressure of gear motors is usually quite low: between 100 and 150 bar. Modern gear motors, however, are capable of operating at continuous pressures of up to 250 bar.

A major drawback of gear motors is that they produce a large amount of noise. Gear motors with only one direction of rotation are designed exactly the same as external gear pumps. A gear motor that can change directions of rotation has a drain case port and the axial pressure fields are different. The efficiency of gear motors is relatively low due to oil leakage.

Type of Gear Motors

How DTA can help save you time, effort and money on sourcing hydraulic motors.

The hydraulic motor must be geared to hydraulic system requirements; issues such as load, speed, serviceability, range of load, etc. must be taken into account. Get advice and suggestions from DTA to select the appropriate hydraulic motor for your application that will suit your budget. Contact DTA today!

Contact DTA Hydraulics
   +31 (0) 168 407 144
  +31 (0) 168 407 145

How DTA can help save you time, effort and money on sourcing hydraulic motors.

DTA has extensive expertise with hydraulic motors and carries a substantial inventory of motors from several major vendors. Depending on your requirements, DTA supplies you hydraulic motors of high-quality, taking into account a wide variety of the functional and hydraulic system requirements.

Hydraulic motor load, range of load, serviceability and speed must be geared to hydraulic system demands.

DTA provides you with hydraulic motors from high quality manufacturers, such as Calzoni, Denison Hydraulics, Parker, and Staffa Kawasaki. We can provide premium build hydraulic motors with a very short time of delivery, as well as hydraulic motor spare parts, service and installation manuals.


DTA is serving your industry with the supply of hydraulic parts and hydraulic components for more than 25 years. Since 2010 we have been fully qualified and certified as distributor hydraulics by Parker Hannifin. Together we developed a rapid delivery program for the genuine Denison Hydraulics single and multiple vane pumps. We support industrial and mobile applications and hold a considerable inventory of genuine parts, components and sub-assemblies.

Vane pumps and genuine spare parts in stock; over 25,000 configurations listed in our online pump catalogue!

Currently we can supply over 20,000 pump configurations from stock. All the hydraulic parts and components that we supply are new and genuinely manufactured by the high quality hydraulic manufacturer of your choosing. DTA can be your one-stop-shop and supplies high-quality brands only such as Parker Hannifin (Denison Hydraulics, Olaer, Calzoni, VOAC, Sterling Hydraulics), Bosch Rexroth (Brüninghaus, Eppensteiner, Hägglunds, Hydromatik, Oil-Control), Bucher Hydraulics, Moog, STAR Hydraulics, Hydac and Eaton (Char-Lynn, Eaton Hydraulics, Integrated Hydraulics, Vickers).