Varvel Worm Gearbox - F RS 85 - Output Shaft Ø32mm

The Varvel FRS 85 Ø32mm gearbox: high-performance worm gear for your industrial and agricultural transmissions

Designed to operate in the most severe operating conditions, the Varvel FRS85 worm gear stands out for its exceptional mechanical robustness, compact size, and remarkable adaptability. Whether it equips industrial or agricultural machines, it ensures precise, reliable, and durable transmission, while minimizing maintenance needs.

A product of the renowned expertise of the Emilia-Romagna region in Italy, the FRS85 effectively integrates into conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as any equipment subjected to intensive and prolonged operating cycles.

At Dymatec Industries, each FRS85 gearbox undergoes a thorough technical inspection and custom configuration to ensure perfect suitability with your existing production lines.

In which sectors and on which machines is the FRS85 Ø32mm worm gear used?

Its ability to produce significant torque at low speeds combined with its great installation flexibility make the FRS85 an essential transmission component in many areas of activity:

• Conveyors and belt conveyors: transport of parts, packages or bulk materials on production lines
• Mixers and agitators: mixing and homogenization of food, chemical or pharmaceutical products
• Screw conveyors and dosing systems: precise raw material feeding in the food and plastics industries
• Agricultural machinery: spreaders, seeders, irrigation systems and harvesting equipment
• Gates and lifting systems: motorization of automatic barriers, industrial valves and hatches
• Pumps and compressors: low-speed drive for viscous or loaded fluids
• Packaging and labeling lines: precise control of rates on packaging lines
• Handling equipment: lifting tables, motorized trolleys and automated transfer systems

Its low noise level and compact format—two characteristics specific to worm and wheel transmissions—make it an ideal solution for environments where acoustic discretion, reduced footprint, and durability are imperatives.

The G version prevents motor shaft seizure and extends the life of your gearbox

The FRS85 features a motor-reducer coupling in G version that ensures efficient, direct and energy-loss-free torque transfer. This system prevents the risk of motor shaft seizure during prolonged periods of inactivity, reduces the frequency of unplanned interventions, and helps you control your maintenance costs in the long term.

Select from 12 reduction ratios to precisely calibrate your transmission

The FRS85 covers a full range of 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100, offering great flexibility to adjust the output speed and transmitted torque to the requirements of each machine. The formula remains simple: motor speed ÷ reduction ratio = output speed.

Four mounting solutions for optimal integration on all types of equipment

The FRS85 can be easily installed thanks to several available mounting configurations:

• Direct mounting on casing (PC version)
• FL or FB output flange with standardized bolt circles
• Mounting on mounting feet
• Torque arm with silent block to absorb vibrations and dynamic forces

Hollow shaft Ø32 mm supplied as standard, customizable according to your output configurations

The FRS85 is equipped as standard with a Ø32 mm hollow shaft allowing a direct, precise, and backlash-free connection to your machine. For specific needs, two alternative output configurations are offered:

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

The FRS85 Ø32mm is compatible with standardized IEC 80, 90, 100 and 112 motorizations

The gearbox accepts motor input flanges conforming to the following IEC standards:

These combinations ensure a robust and precise mechanical connection between motor and gearbox for maximum transmission efficiency.

Customize your FRS85 gearbox with its many technical configuration options

The FRS85 is available in several variants to precisely meet the requirements of each application:

• AD: double output shaft
• AS: single output shaft
• ASC: protective cover for hollow shaft
• TLI: internal torque limiter
• TLE: adjustable external torque limiter
• GRM: low backlash version for high precision applications
• VB: screw extension on the side opposite the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: approved version for explosive atmospheres

The Varvel FRS85 Ø32mm directly replaces gearboxes from major market manufacturers

For a risk-free replacement, make sure the existing output shaft is dimensioned at Ø32 mm. In case of renovation or modernization of the installation, transmit the nameplate of your current gearbox to quickly identify the technically equivalent or more powerful solution.

The FRS85 is interchangeable with gearboxes from the following manufacturers:

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

Our team of specialized technicians is at your disposal to guide you towards the gearbox best suited to your needs and guarantee immediate resumption of activity, without intervention on your production infrastructure