Varvel Worm Gearbox - F RS 70 - Output Shaft Ø25mm

Varvel FRS70 Ø25mm: The Worm Gearbox Designed for the Most Demanding Industrial and Agricultural Transmissions

Combining high mechanical resistance, compactness, and versatility, the Varvel FRS70 worm gearbox is a reliable benchmark for the industrial and agricultural sectors. Designed to operate in intensive conditions, it ensures durable and precise transmission while limiting maintenance needs.

Manufactured in Italy's Emilia-Romagna region, globally recognized for its expertise in mechanical transmission, the FRS70 effectively equips conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as any equipment subject to continuous operation.

At Dymatec Industries, each FRS70 gearbox is meticulously inspected and configured to ensure perfect compatibility with your existing industrial installations.

In which sectors and applications is the Varvel FRS70 worm gearbox used?

Its ability to provide high torque at low speed combined with its installation flexibility make the FRS70 an essential transmission component in many fields. It is notably used on:

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

Its reduced noise level and small footprint—characteristics inherent to worm gear transmissions—make it a particularly suitable solution for environments where acoustic discretion, compactness, and robustness are priorities.

The G version coupling ensures lossless torque transmission and minimizes machine downtime

The FRS70 features a motor-reducer coupling in G version, ensuring efficient, direct, and lossless torque transmission. This system prevents motor shaft seizure during prolonged shutdowns, significantly reduces the frequency of technical interventions, and allows you to reduce your operating costs in the long term.

Precisely determine your output speed thanks to the FRS70's 12 reduction ratios

The FRS70 is available in 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100, allowing fine adjustment of the output speed and necessary torque  for each application. The calculation is immediate: motor speed ÷ reduction ratio = output speed.

Four mounting options for flexible installation on all types of equipment

The FRS70 is easily installed thanks to its multiple mounting configurations:

• Mounting on casing (PC, PA, or PB version)
• FL, FA, or FR output flange with standardized bolt circles
• Mounting on mounting feet
• Torque arm with silent block to absorb vibrations and dynamic stresses

Ø25 mm hollow shaft supplied as standard, with possibility for custom output configuration

The FRS70 is supplied as standard with a Ø25 mm hollow shaft ensuring a direct, precise, and backlash-free connection to your machine. Two alternative output configurations are available depending on needs:

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

The FRS70 accepts standardized IEC 71, 80, 90, and 100 motors

The gearbox is compatible with the following IEC standard motor input flanges:

These combinations ensure a rigorous mechanical connection between motor and gearbox for optimal and uncompromising power transfer.

Customize your FRS70 gearbox with its many configuration options

The FRS70 comes in several technical variants to adapt to 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: worm extension opposite the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: approved version for potentially explosive atmospheres

The Varvel FRS70: a direct substitute for gearboxes from leading manufacturers on the market

For a reliable and risk-free replacement, verify that the existing output shaft is indeed Ø25 mm. In case of renovation or modernization of an installation, transmit the nameplate of your current gearbox to quickly identify the equivalent or technically superior solution.

The FRS70 is interchangeable with gearboxes from the following manufacturers:

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

Our team of technical specialists remains available to guide you towards the most suitable solution for your constraints and ensure a quick return to service, without modification of your production infrastructure.