Discover & understand

Modular system

Versatile gear unit solutions: Individual adaptation thanks to modular design

Our gear units are characterized by their high flexibility in application. Whether you need a customized solution for a specific customer or have a standard application, you will find it with us. We offer a wide range of gearboxes to choose from that will best meet your requirements. From the right size to the required power, the precise gear ratio, the right torque to the attractive design and surface finish – we take all these aspects into account.

Our gear units are perfectly matched to the requirements of your application and field of use. We understand that each application is unique and has specific needs. That’s why we offer you the opportunity to choose from a diverse selection of gearheads to ensure you get exactly the right product for your needs. Your satisfaction and the smooth operation of your systems are our main focus and that is why we attach great importance to the precision and quality of our gearboxes.

What is a gearbox?


A gearbox is a mechanical device used to transmit rotary motion and torque between different machine parts or drive elements, changing the speed and torque.

Gears are used to create the optimal conditions for various applications by converting input motion from a source (e.g., motor) into a desired output motion (e.g., wheels, shafts). They make it possible to adapt the speed and torque to the respective requirements, whether for power transmission in vehicles, industrial machinery or other technical applications.

How does a gearbox work?


A gearbox is an essential mechanical device used in numerous machines and devices to efficiently transmit and adjust rotational movements and torques. The basic operation of a gearbox is based on the conversion of speed and torque to meet the specific requirements of an application.

At its core, a gearbox consists of various gears or pairs of gears mounted on axles. Each of these gears has a certain number of teeth that can mesh with each other. The size of the gears and the number of their teeth determine the transmission ratio, i.e. the ratio between input speed and output speed, as well as the torque transmission.

When an input rotary motion is transmitted to the first gear, the drive gear, it begins to rotate. As the teeth engage with the second gear, the output gear, the rotary motion is transmitted to it. Depending on the ratio of teeth between the input and output gears, the output speed may be higher or lower than the input speed. At the same time, the torque is adjusted accordingly: A reduction in speed is often accompanied by an increase in torque and vice versa.

In addition to simple gears, other components such as worm gears, belts or chains can be used to create more complex gear systems that meet specific requirements. The choice of the appropriate gearbox depends on factors such as the required speed, desired torque, efficiency and space availability.

Overall, the operation of a gearbox enables precise adjustment of rotary motion and torque to effectively operate a wide variety of machines and applications. From vehicles to industrial machinery to electronic devices, gears play a critical role in converting energy into purposeful motion.

What types of gearboxes are there?


Worm gearbox is one of the most basic and common types of gearboxes.

A worm gearbox consists of a helical shaft (worm) and a rotating gear (worm wheel). It is used to transmit rotary motion between two axes at right angles to each other. Worm gearboxes offer high gear ratios and the ability to transmit large torques, making them ideal for low speed, high torque applications.

This gear system consists of a central sun gear, planet gears, a ring gear and planet gear carrier. It offers high gear ratios and compact design, which makes it very effective in many applications.

The helical gear uses parallel gears to transmit rotary motion and torque. The teeth of the gears mesh directly and transmit the force. Helical gears can be used in a variety of configurations including straight, helical and helical teeth to meet different gear ratios and requirements.

Joint innovation from the Franz Morat Group and Ruhrgetriebe.

The speeroX wheel set shifts the gear teeth of the wheel to the face side, creating spiral teeth driven by a modified worm. This spatial arrangement leads to a reduction in installation space and creates kinematically advantageous conditions that minimize the sliding components as well as friction. Nevertheless, the gearing remains quiet thanks to a high overlap and seamless engagement. A durable steel-to-steel pairing minimizes wear and increases power density.

In matching applications, the speeroX gear set outperforms conventional multi-stage gearboxes in terms of transmission efficiency. It is characterized by its smooth running, offers high efficiency and a long service life. All this is achieved in just one gear unit stage, with reduced weight and installation space. This simple system consists of only two components – worm and wheel, which facilitates assembly.

What types of gearboxes does Ruhrgetriebe produce?



Retrieve important product data:

Using the digital product label, you can easily send us all the information required for the unique specification of your required gearmotor. A glance at the nameplate of your drive unit and entering the ID number will provide you with a 100% specification.

Comfortable. Simple. Secure.

Discover more advantages: