Varvel worm gear reducer - F RS 50 - Output shaft Ø24mm

The Varvel FRS50 Ø24mm gearbox: performance and reliability for your industrial and agricultural transmissions

Specifically designed for demanding production environments, the Varvel FRS50 worm gearbox stands out for its excellent mechanical robustness, compactness, and adaptability. Whether in the industrial or agricultural sector, it guarantees reliable and durable transmission, while minimizing maintenance constraints.

Designed and manufactured in Italy, in the renowned region of Emilia-Romagna, the FRS50 is used on conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as on all equipment operating continuously.

At Dymatec Industries, each FRS50 gearbox is carefully inspected and configured to offer maximum compatibility with your current production lines.

The G version coupling eliminates the risk of seizing and simplifies maintenance

The FRS50 is equipped with a G version motor-reducer coupling that ensures direct, precise, and energy-loss-free torque transfer. This device effectively prevents motor shaft lock-up during prolonged periods of inactivity, limiting corrective interventions and enabling maintenance cost control over time.

Select from 12 reduction ratios for optimal adjustment of your transmission

The FRS50 covers a complete range of 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100. This range allows for precise adaptation of the output speed and transmitted torque to the specific requirements of each machine. The calculation principle remains simple: motor speed ÷ reduction ratio = output speed.

Four mounting configurations for seamless integration on your equipment

The FRS50 offers mounting solutions adapted to all situations:

• Direct mounting on housing (PC, PA or PB version)
• FL or FA output flange  with standardized center distances
• Mounting on mounting feet
• Torque arm equipped with silent blocks to neutralize vibrations and dynamic forces

Hollow shaft Ø24 mm supplied as standard, with output configuration options

The FRS50 includes a standard Ø24 mm hollow shaft allowing direct and compact connection to your machine. For specific needs, two alternative output configurations are available:

• Single solid output shaft (AS)
• Double solid output shaft (AD)

Native compatibility with standardized IEC 63, 71, and 80 motorizations

The FRS50 accepts motor input flanges to the following IEC standards:

These combinations ensure a rigorous mechanical coupling between motor and gearbox, for optimal transmission efficiency.

A wide range of technical options to customize your FRS50 gearbox

The FRS50 comes in several configurations to precisely meet the requirements of each application:

• AD: double output shaft
• AS: single output shaft
• ASC: protection cover for hollow shaft
• TLI: internal torque limiter
• TLE: adjustable external torque limiter
• GRM: reduced backlash version for precision applications
• VB: screw extension on the side opposite the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: certified version for explosion-risk areas

The FRS50 ensures direct and reliable replacement of gearboxes from major brands

Before any replacement, ensure that the existing output shaft is properly sized at Ø24 mm. For renovation or installation modernization, provide the nameplate of your current gearbox to quickly identify the technically equivalent or higher-performing solution.

The FRS50 Varvel is interchangeable with gearboxes from the following manufacturers:

• Motovario
• Bonfiglioli
• SITI
• STM
• SEW-Eurodrive (depending on configurations)
• Rossi

Our team of technical experts is at your disposal to assist you in selecting the ideal gearbox and ensure immediate resumption of production, without modification of your existing installation.