FELLAR’s range of standard gear reducers (shown in catalogue FRT17-87) are the product of many years of experience in the manufacture of technologically-advanced transmission system components.


From calculations to design and manufacture, the most advanced technical methods are used in the production of our reducers.

The production process for our reducers is based on the use of machine tools and measuring and dimension control instruments incorporating the latest developments in technology.

FELLAR’s quality control system guarantees the quality of the manufacturing process, the traceability of each reducer component and effective supply and after-sales service for every reducer produced.

All reducers supplied by FELLAR are subject to testing of their performance prior to delivery to ensure the highest standards are met on leak-tightness, vibration, noise levels, temperature and so on.

The FELLAR product series presented in this catalogue are in stepped sizes to facilitate efficient storage. The nominal velocity ratios comply with DIN 323 series of standard numbers R20.

The range of tandem reducers with parallel or perpendicular shafts contained in this catalogue covers standard speed ratios from 7:500 and powers up to 5000 kW. There are three main types:


Solid shaft with base feet.

Hollow output shaft with base feet.

Hollow output shaft and braking torque arm.

Parameter Name	Parameter Value
Shaft orientation	right angle
Shaft configuration	hollow-shaft tandem
Other characteristics	industrial
Power (W)	0 - 0