Epicyclic gear motors
Different types of gear motors

What is an orbit motor and why do you need it?

Epicyclic gear motors are also called orbit motors, gear ring motors or gerotor motors. Unlike external gear motors, the orbit motor has very low oil leakage. The motor can produce large torques at very slow speeds (approximately 5 rpm).

Just like gear ring pumps, the rotor of the orbit motor has one tooth less than the stator. Because of the difference in teeth, enclosed chambers are formed within the orbit motor.

Epicyclic gear motors or orbit motors are available in two types: one has a central shaft and the other has a cardan shaft. Orbit motors with central shafts are widely used in hydraulic systems.

The orbit motor with a cardan shaft consists of cylindrical rolls in the set of gear wheels. It is only used for special applications (e.g. high pressures, very high efficiency and longer lifespan).

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).